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问题 单项选择题

关于康普顿效应的发生几率错误的是（）

A.与物质的原子序数成正比

B.与入射光子的能量成反比

C.与入射光子的波长成正比

D.与入射光子的频率成反比

E.与管电流成正比

答案

参考答案：E

补全对话，情景问答

完成对话。

A: (1)                                                                                                                           ?

B: Go down this street, take the third crossing on the left, Then go straight ahead. Go past the supermarkt. 

    Walk about three blocks. You will see the post office is between the bank of China and the bookstore.

A: (2)                                                                                                                           ?

B: It's about fifeen minuts' walk. It's late now. you'd better take a bus.

A: (3)                                                                                                                            ?

B: No. 49 bus.

A: (4)                                                                                                                            ?

B: It will take you about five minutes to get there.

A: Thanks a lot.

B: (5)                                                                                                                             .

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单项选择题

枕骨骨折的最佳摄片位置是（）

A.颅骨前后位

B.颅骨后前位

C.水平侧位

D.汤氏位

E.颅底位
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