316×□，积是三位数，则□里最小填[ ]
A. 1
B. 8
C. 6
答案：A
连续监测法计算酶催化活性浓度是在哪个反应期
A．零级
B．一级
C．二级
D．三级
E．混合级
People are collecting money the children in the disaster area. [ ]
A.in need of
B.in case of
C.in aid of
D.in honour of
