地质构造不影响采区的合理划分者为一类。()
参考答案:对
可使试带法尿糖阳性的尿液有()。
A.葡萄糖半乳糖尿
B.葡萄糖乳糖尿
C.果糖半乳糖尿
D.葡萄糖戊糖尿
E.果糖半乳糖尿
A self-contained breathing apparatus is used to().
A.make underwater repairs to barges
B.determine if the air in a tank is safe for men
C.enter areas that may contain dangerous fumes or lack oxygen
D.resuacitate an unconscious person