阅读理解 A mother and her young son got int
问题：
阅读理解
A mother and her young son got into a bus in a small city and sat down. The bus conductor(售票员)
came to them for their money. The mother said,"l want one ticket to Oxford," and gave her a shilling
( =12pence).
The conductor looked. at the small boy for a few seconds and then said to him. "How old are you,
young man?"
The mother began speaking, but the conductor stopped her, and the boy said, "I'm four years old at
home, and two and a half on buses and trains."
The mother took six pence(便士)out of her bag and gave the money to the conductor. The conductor gave her one and a half tickets.
1. One day the mother took a bus____.
A. to a small city
B. to get some 'money
C. with her son
D. to get a ticket
2. The mother gave the conductor____pence in all(总共)that day.
A. 12
B. 16
C. 10
D. 18
3. The mother was_______.
A. not honest(诚实)
B. honest
C. very clever
D. not clever
4. The conductor asked how old he was.
A. the mother
B. the little boy
C. the bus driver
D. the mother and the son
5. The, boy was_________years old in fact.
A. four
B. two
C. two and a half
D. six and a half
m/s平抛救生圈，第一个刚落到快艇，接着抛第二个，结果第二个救生圈刚好与甲队员同时抵达快艇，若人的质量m，重力加速度g＝10 m/s2，（已知18×18=324， sin30°=0.5，cos30°=
）问：
