费尔蒂（Felty）综合征表现有（） A.关节畸形 B.关节肿大 C.关节僵硬 D.

—Who _____ a pet in your class?

—Many boys _____. [ ]

A. has; do

B. have; do

C. have; does

D. has; are

根据句意及首字母提示填入适当的词。

1. He should be a_______ to come into the room.

2. He is s_______ because he often does foolish things like this.

3. He often c_______ with his friends on the Internet.

4. I want to be a v_______ in the Olympic Games 2008 of Beijing.

5. Marry has her ears p_______. She wants to wear earrings.

中共十八届四中全会提出，法治的生命线是（）。

A.民主

B.自由

C.公正

D. * *

空气泡沫枪按吸液情况分（）式。

A、主动吸液

B、被动吸液

C、自吸液

D、非自吸液

E、综合吸液

下列属于阻波器必填项的有（）

A.安装方式

B.相数

C.使用环境

D.结合方式