下列何项不是百合固金汤的药物组成( )
A．沙参
B．熟地
C．生地
D．麦冬
E．当归
参考答案：A
There is _______ big desk in our classroom. _______desk is for our teacher.
[ ]
A. a, The
B. a, A
C. the, The
D. an, A
我国《生活饮用水卫生标准》中规定，总大肠菌群不超过
A．100cfu/mlB．100cfu/3mlC．3cfu/mlD．3cfu/LE．100cfu/L
