下列4种不同数制表示的数中，数值最小的一个是A．八进制数247 B．十进制数169

小题1:Tom is a 12-year-old boy. If he has a headache, he should take __________ a day.

A．tablet

B．1 tablet

C．2 tablets

D．3 tablets小题2:The Public Library is closed at __________.

A．5:00 p.m.

B．9:00 a.m.

C．4:00 p.m.

D．12:00 a.m.小题3:Lin and his father want to go to the Hamilton Zoo, they should pay __________.

A．$ 15

B．$ 30

C．$ 45

D．$ 10

从A、B、C、D中， 选出能替换下面句子画线部分的内容的选项。

1. —How are you, Jack?

    —I am OK.

A. Good

B. Nice

C. Fine

D. great

2. This is Mr. Huang. He is an English teacher.

A. He's

B. It's

C. His

D. It is

3. My grandmother and grandfather like vegetables very much.

A. parents

B. grandparent

C. grandparents

D. parent

4. My father eats eggs for breakfast. He likes them very much.

A. has

B. is

C. likes

D. meets

5. I have no balls, but Jim has.

A. doesn't have

B. am not

C. am not have

D. don't have

（x+1）（2x+1）¹⁰=a₀+a₁（x+2）+a₂（x+2）²+…+a₁₁（x+2）¹¹，则a₀+a₁+a₂+…+a₁₁的值为