单项选择。
— do you come to school?
— By bike. [ ]
A. How
B. Where
C. What
D. Which
答案:A
慢性锥体束损害的肌张力表现为()
A.强直性铅管样肌张力增高
B.痉挛性折刀样肌张力增高
C.强直性齿轮样肌张力增高
D.去脑强直
E.弛缓性肌张力减低
煤堆上采样时在非新工作面情况下,应先除去()的表面层
A、0.2m
B、0.5m
C、0.8m
D、1