风湿性心脏病二尖瓣狭窄并发栓塞时，最常见的栓塞部位在
A．肾动脉
B．四肢动脉
C．脾动脉
D．肺动脉
E．脑动脉
参考答案：E
当x=1时，代数式2x+5的值为[ ]
A.3
B.5
C.7
D.-2
根据上句完成下句，且使上下两句意思一致，每空一词。
1. — Could you help me? — Certainly.
—Could you help me? — __________ __________.
2. Can you take care of my little dog?
Can you__________ __________my little dog?
3. They often play basketball on Saturdays and Sundays.
They often play basketball __________ __________ .
4. When does he go to see a film?
When does he__________ __________ __________ __________ ?
5. Pandas are a little interesting.
Pandas are interesting.
