凡方向和大小都不随时间变化的电流叫恒定直流电流。( )_爱下问搜题

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问题判断题

凡方向和大小都不随时间变化的电流叫恒定直流电流。( )

答案

参考答案：对

完形填空

完形填空。

      We have two new students    l   our class. Their   2   are Lucy and Lily. They are twins (双胞胎).
They look the same (一样). They   3   American. They are    4   the same row. This is a picture   5   our
classroom. This is   6   desk and that is    7   chair.  Where are   8  _ bags? They are behind the chairs.
Look!    9   that under the chair. Is it a hat?   10   , it's a cat.

( )1. A. at
( )2. A. name
( )3. A. are
( )4. A. at
( )5. A. in
( )6. A. Lily
( )7. A. Lucy
( )8. A. their
( )9. A. What's
( )10. A. Yes

B. in
B. names
B. is
B. in
B. of
B. Lily's
B. Lucy's
B. your
B. What
B. No

C. of
C. name's
C. do
C. on
C. for
C. Lucy
C. Lily
C. her
C. Where's
C. yes

D. on
D. names'
D. can
D. of
D. on
D. Lucys
D. Lucys
D. my
D. Where
D. no

选择题

—How do you like vinegar?

—_____. [ ]

A. Salty

B. Sour

C. Spicy

D. Sweet