建设投资的估算方法包括简单估算法和( )估算法。
A．比例
B．分类
C．复杂
D．指标
参考答案：B
The policeman stopped him when he was driving home and ______ him ______ speeding.
A．warned; for
B．accused; of
C．charged; of
D．blamed; on
下列哪些药物药用其反式结构（）
A.雷尼替丁
B.头孢曲松
C.己烯雌酚
D.他莫昔芬
E.维生素A
