梯电动机在空载情况下，应能承受提高转速至额定值的（），历时2分钟而不发生有害变形。
A.120%
B.15%
C.200%
参考答案：A
根据句意、汉语意思及首字母提示补全单词。
1. Toronto is in C ___ .
2. I have many friends all over the_____(世界).
3.What_____(语言)do you speak?
4. He speaks Japanese. He is from J___ .
5.I have a pen p ___ .Her name is Mary.
6. He c_____ from China.
7. —Where is Sydney?
—It is in A __ .
8. She comes from England. She speaks E ___ .
9. He _ _(住) in Paris.
10. He went to many _ _ (国家) last year.
患者俯卧屈膝位，检查者将其小腿上提或尽力屈膝，出现大腿前侧放射性疼痛者为阳性，是（）。
A.直腿抬高加强试验（Bragard征）
B.托马斯征（Thomas征）
C.健侧直腿抬高试验
D.直腿抬高试验（Lasegue征）
E.股神经牵拉试验
