脊髓前角受压可出现（）
A.肌张力增高
B.肌萎缩
C.腱反射亢进
D.病理征阳性
E.痉挛性瘫痪
参考答案：B
The manager, __ it clear to us that he didn’t agree with us, left the meeting room.
A．to make
B．having made
C．made
D．making
电解CuCl2和NaCl的混合溶液，阴极和阳极上分别析出的物质是（ ）
A．H2和Cl2
B．Cu和Cl2
C．H2和O2
D．Cu和O2
