退浆用的淀粉酶组分中主要包括()、()和异淀粉酶等。
参考答案:α-淀粉酶;β-淀粉酶
—I’ll talk to my son Bill about it as soon as possible. He usually listens.
—We need _______ listening. We need action.
A.more than
B.less than
C.not more than
D.no more than
开展室内质控前的准备工作()
A.培训实验室工作人员
B.建立标准操作规程
C.选用较理想的质控品
D.质控品的正确使用与保存
E.选择质控规则