足够的风速可以有效的抑制和排除工作面所产生的粉尘，足够对风量可以有效地稀释流经工作面所产生的污染空气。（）
参考答案：对
居里夫人说：“我从来不是有过幸运，将来也永远不指望幸运……我激励自己___”[ ]
A．幸运与成功是否有着密切的关系
B．坚强意志是成功的保证
C．坚强意志是成功的秘诀
D．坚强意志是成功的源泉
A client with type 1 (insulin-dependent) diabetes mellitus who is a multigravida visits the clinic at 28 weeks’ gestation. Which of the following instruction by the nurse is appropriate for the client（）
A. Nonstress testing is performed weekly until 32 weeks’ gestation.
B. Weekly fetal movement counts are made by the mother.
C. Contraction stress testing is performed weekly.
D. Induction of labor is begun at 34 weeks’ gestation.
