一定质量的氯化铜和40g盐酸组成的混合溶液中慢慢 滴入20%的氢氧化钠溶液并振

词汇训练：.用适当的词填空（共10小题，每题1分，满分10分）

As everyone knows, the skin is 小题1: （必不可少的）to us. Our skins can sometimes小题2:  (burn) due to our 小题3:  (粗心). Therefore, first aid shows its importance in the小题4:（治疗） of burns. Generally speaking, burns, 小题5:  are caused by hot liquids, fire, radiation and so on, can be divided into three types－first degree, second degree and third degree   小题6: (depend) on the 小题7:  (受伤的) layers of the skin. To minor burns, cool water proves to be helpful in  小题8:（stop）the burning process and preventing or reducing pains. But 小题9: severe burns, get the 小题10: to the doctor immediately.

受气压带和风带移动影响而形成的气候类型是（　　　）

A．热带季风气候

B．热带雨林气候

C．地中海气候

D．温带大陆性气候

香港和澳门的回归都离不开“一国两制”方针。下列人物中，第一个提出“一个国家，两种制度”的完整构想的是 [     ]

A．毛 * *

B．邓 * *

C．周恩来

D．江 * *

河谷狭窄，地质条件良好，适宜修建（）。

A.拱坝

B.重力坝

C.支墩坝

D.土石坝