单选题:Dr. Smith hopes to make this device lighter so as to help th 题目分类:理工类 题目类型:单选题 查看权限:VIP 题目内容: Dr. Smith hopes to make this device lighter so as to help the blind navigate unfamiliar places. A.Right B.Wrong C.Not mentioned 参考答案: 答案解析:
He accused that company of breaking the contract. He accused that company of breaking the contract.A.tearing B.writing C.breaching 分类:理工类 题型:单选题 查看答案
The mail I wrote to my mom was delivered this morning. The mail I wrote to my mom was delivered this morning.A.received B.lost C.sent D 分类:理工类 题型:单选题 查看答案
大部分的汽车保险是富于弹性的,下列表述正确的是( )。 大部分的汽车保险是富于弹性的,下列表述正确的是( )。A.|Ed|>1 B.|Ed|<1 C.|Ed|=∞ D.|Ed|=0 分类:理工类 题型:单选题 查看答案