脑挫裂伤的临床表现,正确的是
A.伤后可有中间清醒期
B.不出现局灶体征
C.伤后意识障碍>30min
D.生命体征改变不明显
参考答案:C
— Is Tom a student with good manners?
— I don't think so. In fact, he is ____ but polite. [ ]
A. something
B. anything
C. nothing
D. everything
东风片35毫米固定型放映机的光源防火装置在()位置。
A.收片合中
B.片门前
C.片门后
D.供片合中