既能消食除胀,又能降气化痰的药物是
A.鸡内金
B.山楂
C.莱菔子
D.谷芽
E.神曲
参考答案:C
电务从业人员在()作业前必须提前召开出工准备会,并做好记录。
A.检修、巡视
B.施工
C.配合施工
D.检测、检查
He’s given me so much help that I really want to do something for him _____.
A.in turn
B.by turns
C.in return
D.in answer