“我以日始出时去人近”中的“去”的意思是[ ]
A.过去不
B.除掉
C.离
D.在动词后,表示持续
答案:C
I have no _______ to the plan, so long as it would not cost too much.
A.refusal
B.comment
C.idea
D.objection
互为同素异形体的一组物质是
A.水和双氧水
B.铜片和铜丝
C.金刚石和石墨
D.冰和干冰