过磷酸钙是速效肥料，连续使用可使土壤（）。A.疏松 B.碱性 C.酸性 D.保肥性好

Mr. Smith is admitted to the psychiatric hospital for evaluation after numerous incidents of threatening, angry outbursts and two episodes of hitting a coworker at the grocery store where he works. He is very anxious and tells the nurse, "I didn’t mean to hit him. He made me so mad that I just couldn’t help it. I hope I don’t hit anyone here. " Which of the following is the nurse’s best response

A. "It sounds like you were angry. When you feel angry here, talk to the staff about it instead of hitting. "
B. "I’m sure you didn’t mean to hit him and that it won’t happen here. "
C. "You’d better not hit anyone here, even if you do get mad. "
D. "Tell me more about what happened. "

压缩空气法适用于（）

A.苯吸入染毒

B.氯气吸入染毒

C.颗粒物吸入染毒

D.SO₂+颗粒物吸入染毒

E.苯+颗粒物吸入染毒

《国务院关于落实科学发展观加强环境保护的决定》在积极发展环保事i中提出，要加快环保产血体系建设的（）。

A、国产化

B、国际化

C、现代化

D、标准化

E、科学化

化学小组同学取某黄铜(铜和锌的合金)样品进行如下实验，他们取该黄铜样品碎屑50g，把200g稀硫酸分4次加入到该样品中，测得数据记录如下表：

(1) 当加入稀硫酸的质量为        g时，反应恰好完成。

(2) 计算生成氢气的总质量（写出计算过程）。

崩漏的诊断依据是（）

A.经血暴下不止

B.经血淋漓不断

C.崩与漏交替出现

D.伴有不同程度的贫血

E.月经周期、经期、经量的严重紊乱