母粒添加装置的组分配比中,白切片组分比例A与色母粒组分比例B的一般为()。
A.A>B
B.A<B
C.A=B
D.A+B=100%
参考答案:A, D
The knowledge that I had caused him to lose his job made me bitterly ______. [ ]
A. desperate
B. innocent
C. ashamed
D. immoral
腓骨肌萎缩症最常见的类型为()。
A.CMT1型
B.CMT2型
C.CMT3型
D.CMT4型
E.CMT5型