国庆节阅兵式上，我们经常在电视里看到从高空飞机上拍摄到的画面，若用一个镜头焦距为60mm的相机在高空拍照，此时胶片到镜头的距离 （ ）
| A．大于120mm | B．恰好60mm |
| C．小于60m | D．略大于60mm |
相关试题
从方框中选择合适的内容，完成下列短文，注意字母的大小写形式。
（1）What does your brother like doing?
（2）What does your mother do?
（3）When does Tom get up?
（4）What subjects do Su Hai and Su Yang like?
（5）Where does his e-friend live?
（6）How old are you?
----Look! This is our new school.----___________________.
A. What beautiful.
B. How beautiful school.
C. What a beautiful school.
----What’s your hobby?
---- .
A. I like bananas. B. I like skating. C. I like Art.
Children’s Day is coming. I buy some things________ my friends.
A. for B. to C. give
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