【判断题】脉冲场是指场的强度从空间维度来看是有节律地发生变化的。()
【单选题】What can be learned from the passage?
A.
Parents' suicide leads to both mental and physical problems of their children.
B.
Children whose parents die of suicide can hardly achieve positive outcomes.
C.
Children will lose the sense of security after a parent suddenly dies of suicide.
D.
It is better to hide the fact of the parent's suicide from the kids.
【单选题】The concert__ to _ some money for those suffering from the earthquake, which __ 2,000 lives.A.in
A.
25. The concert__ to _ some money for those suffering from the earthquake, which __ 2,000 lives. A.intending ; raise; killed
B.
was intended; collect; claimed
C.
to intend; raise; claimed
D.
intended; raise; killed
【单选题】美国是世界上最大的农产品出口国,其发展农业生产的优势条件有( ) 1地处热带,光热条件好 2农业人口比例高,劳动力充足 3土壤肥沃,水源丰富 4平原面积广,耕地多
【简答题】某公司一个项目投资200万,无建设期,运营期每年现金净流量为40万元,投资回收期为( )年。
【单选题】When I got home I got a message pinned on the door, ______, “Sorry to miss you. Will call later”