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问题 选择题

下图示意长江上游地区雪线高度的经向和纬向变化趋势。完成以下1—2题。

1．该地区雪线高度变化的趋势 [     ]

A．自北向南增高

B．自西向东增高

C．自东北向西南增高

D．自东南向西北增高

2．影响该地区雪线高度变化趋势的主要因素是 [     ]

A．海拔

B．降水

C．热量

D．坡向

答案

1．D

2．B

单项选择题

In this section, you will hear several passages. Listen to the passages carefully and then answer the questions that follow.

Why does the speaker mention the historical sites

A. Some of them are inaccessible to beginning cyclists.
B. Some of them commemorate the development of the bicycle.
C. They are nice places to visit on bicycle tours.
D. They help to make New Jersey a wealthy state.
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单项选择题 A1型题

低温时最常用于体温监测的部位是（）

A.鼻咽，食管及直肠

B.腋窝，食管及鼓膜

C.腋窝，鼓膜及直肠

D.血液，腋窝及直肠

E.血液，鼻咽及食管
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