抢险救援服整套救援服质量不大于（）kg。
A.4.0
B.5.0
C.6.0
D.3.0
参考答案：D
To make the world a nice place to live in, we should take ________ to protect the environment.[ ]
A. approaches
B. means
C. warnings
D. measures
达那唑;脱氢氯甲睾酮
