马钱子应采用（）
A．米炒
B．土炒
C．砂炒
D．蛤粉炒
E．滑石粉炒
参考答案：C
To handle the financial crisis, the new government has to work more ______ with other nations,
especially the less-affected ones.[ ]
A. formally
B. smoothly
C. carefully
D. closely
沉淀IgM所用PEG6000浓度为（）
A.3%～4%
B.6%～7%
C.8%～12%
D.12%～15%
E.25%
