对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have 一单项选择题（所给答案中只有一 项最合题意，每小题1分）（ ）1石灰膏的化学成份是ACa0 BCa(0H)2 CCaS04.1/2H20DCaS04.1/2H20 对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have（ ）2石膏有建筑石膏和高强石 膏之分，后者的化学成份是ACaS04 BCaS04.2H20 CCaS04.1/2H20 DCaS04.1/2H20 对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have （ ）4用于外墙的抹灰砂 浆，其胶凝材料应以（ ） 为主A水泥 B石灰 C石膏 D水玻璃 对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have（ ）5密度（表观密度、堆积密度）是指材料在（ ）状态 下单位体积的重量A绝对密实 B自然 C堆积对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have（ ）6与石膏相比，石灰硬化速度（ ），体积（ ）A快，收缩 B快，膨胀 C慢，收缩 D慢，膨胀 对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have（ ）8材料在（ ）中吸收水分的性质称为吸湿性，指标为A水，含水率 B水，吸水率 C空气，吸水率 D空气，含水率 对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have（ ）10按岩石成因不同，岩石可分为（ ）三大类A深成岩、变质岩、火山岩B深成岩、水成岩、变质岩C岩浆岩、沉积岩、变质岩D深成岩、喷出岩、火山岩 对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have（ ）11与大理石相比，花岗岩（ ）加工，（ ）磨，适宜做（ ）材料A易，耐，室外 B难，不耐，室内 C难，耐，地面 对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have（ ）12生产硅酸盐水泥时，为调节凝结时间，应掺入适量 A石灰 B水玻璃 C菱苦土 D石膏对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have（ ）13硅酸盐水泥的细度用 （ ）法测定，国标规定（ ） A比表面积，300m2/kg B筛分析，0.08mm筛余10%C筛分析，300m2 /kgD比表面积，0.08mm筛余10%对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have（ ）14.粉煤灰水泥的初凝( )min，终凝 ( )minA45， 390 B 45， 600 C 45 ， 390D 45 ， 600对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have（ ）15引起水泥安定性不良原因有（ ）、（ ）和石膏过量ACa0， Mg0 Bf-Ca0（游离氧化钙），f-Mg0 （游离氧化镁） CCa(0H)2 ，Mg(0H)2 对于闪光灯，很多人是恐惧的。同时驾驭两三灯，甚至五灯，的确是很难。但是如果仅仅只是一灯的话，问题就简单很多。更何况即便是，一人一灯Changing the inequality into equality under what condition is the current research key point. This paper uses the and its elementary operation corresponds the partitioned matrix, prove that when satisfy the certain condition, we have（ ）16受侵蚀介质作用的砼不 宜选