在液相色谱中，会显著影响分离效果的是（）。
A、改变固定相种类
B、改变流动相流速
C、改变流动相配比
D、改变流动相种类
参考答案：A, C, D
What can be concluded from the passage
A．Genuine writers often find their work interesting and rewarding.
B．A writer's success depends on luck rather than on effort.
C．Famous writers usually live in poverty and isolation.
D．The chances for a writer to become successful are small.
法人账户透支业务客户经理（）至少进行一次实地贷后检查，发现异常情况及时报告，必要时采取相应措施控制风险发生。
A.每天
B.每旬
C.每月
D.每季
