如图所示为某一点电荷Q产生的电场中的一条电场线，A、B为电场线_爱下问搜题

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问题选择题

如图所示为某一点电荷Q产生的电场中的一条电场线，A、B为电场线上的两点，一电子以某一速度仅在电场力作用下沿电场线由A运动到B的过程中，动能增加，则可以判断

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A．电场线方向由A指向B

B．场强大小E_A>E_B

C．Q一定在B点右侧

D．电子在A点的电势能一定大于B点的电势能

答案

答案：D

完形填空

完形填空。

Han Meimei 1 a Chinese girl . 2 this picture 3 her family 4 home .We can see her father, 5
mother, her brother 6 her (她).They 7 a cat. It’s 8 English cat .Can you see 9 cat? 10 you know
its mame? It is Mimi.

( )1. A. am
( )2. A. Look
( )3. A. at
( )4. A. in
( )5. A. his
( )6. A. and
( )7. A. see
( )8. A. a
( )9. A. a
( )10.A. Do

B. be
B. Look at
B. on
B. /
B. her
B. but
B. know
B. an
B. /
B. Are

C. is
C. see
C. of
C. to
C. their
C. or
C. have
C. /
C. the
C. Is

D. are
D. Read
D. in
D. at
D. Lily
D. too
D. spell
D. the
D. they
D. /

单项选择题 A1/A2型题

食管癌较多发生在（）

A.胸中段食管

B.胸上段食管

C.胸下段食管

D.食管贲门部

E.颈部食管