微波引起血液系统的障碍主要是()
A.白血病
B.贫血
C.血小板减少
D.白细胞减少
E.再障
参考答案:D
There’s another way to survive this competition -- a way no one ever seems to tell you about, _____ you have to learn for yourself.
A.one
B.it
C.that
D.another
杂质限量是指()
A.药物中信号杂质的含量
B.药物中有机杂质的含量
C.药物中有害杂质的含量
D.药物中所含杂质的最低允许量
E.药物中所含杂质的最高允许量