甲状腺激素抑制试验的抑制率是多少即为明显抑制,可排除甲亢()
A.<25%
B.25%~50%
C.<50%
D.>50%
E.<10%
参考答案:D
—How are you, Jack?
—_____, I'm rather sick.
A.In addition
B.As a matter of fact
C.On the other hand
D.On the contrary
将M、N两种金属片分别放入硫酸铜溶液中,M表面析出铜,N没有明显现象.据此判断,三种金属的金属活动性顺序是( )
A.N>Cu>M
B.M>Cu>N
C.Cu>M>N
D.M>N>Cu