问题
选择题
| 关于元电荷的理解，下列说法正确的是（ ） A．元电荷就是电子 B．物体所带的电荷量只能是元电荷的整数倍 C．元电荷就是原子 D．以上说法都不正确 |
答案
答案：B
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| 关于元电荷的理解，下列说法正确的是（ ） A．元电荷就是电子 B．物体所带的电荷量只能是元电荷的整数倍 C．元电荷就是原子 D．以上说法都不正确 |
答案：B
| 完形填空。 | |||
| Three Daughters' Nicknames Mr. and Mrs. Green have three daughters. 1 are Sue, Rose and Kitty. Sue is sixteen, Rose is twelve and Kitty is fourteen. Their 2 . Mr. Green, is a teacher. Their mother, Mrs. Green is a nurse. They 3 their three daughters very much . Sue, Rose and Kitty all like 4 , but they don't like the same fruit . Sue likes apples. Rose likes 5 . Kitty likes oranges. Now Mr. and Mrs. Green don't 6 their real (真正的) names at home. They call Sue "Apple", Rose " Banana " 7 Kitty "Orange". The children like their 8 nicknames (绰号) 9 . Often they call each other's nicknames 10 . | |||
| ( )1. A. Those ( )2. A. father ( )3. A. miss ( )4. A. fruit ( )5. A. pears ( )6. A. say ( )7. A. and ( )8. A. one ( )9. A. much ( )10. A. too | B. These B. brother B. love B. meat B. peaches B. call B. or B. only B. so B. either | C. They C. sister C. hate C. food C. bananas C. tell C. but C. own C. a lot of C. also | D. She D. fathers D. are like D. drink D. potatoes D. speak D. / D. sister's D. very much D. neither |