一切依靠群众是公安工作的根本态度。( )
参考答案：对
Today, people are paying more and more attention to their health, ____ books on keeping healthy extremely hot. [ ]
A. to make
B. make
C. making
D. made
将200克溶质质量分数为l0％的蔗糖溶液稀释到5﹪，需加水的质量为[ ]
A.20克
B.100克
C.180克
D.200克
