装有保险的电路中如果搭铁线发生对地短路将会怎样？（）
A.保险将开路
B.什么也不会发生
C.搭铁处线路将会熔化
D.负载会一直工作
参考答案：B
Excuse me for _____ in without ______.
A．coming, asking
B．coming, being asked
C．to come, asking
D．to come, being asked
He looked at those jewels one after another ______and seemed to show no interest in any one of them.
A．casually
B．greedily
C．confidentially
D．attentively
