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【简答题】
你觉得这封函电写得好吗?如果好,请说出理由。如果不好,请修改。 Dear Sirs, We have received your letter dated 27 March 2017. We are extremely distressed to learn that an error was made pertaining to your esteemed order. please be informed that the cause of your complaint has been investigated and it actually appears that the error occurred in our packing section and unfortunately it was not discerned before this order was dispatched to your good self. Arrangements have been made for a repeat order to be dispatched to you immediately and this should leave our warehouse later today. It is our sincere hope that you will have no cause for further complaint with this replacement order. Once again we offer our humblest apologies for the unnecessary inconvenience that you have been caused in this instance. Kindly contact the undersigned if you require any further clarifications. Very truly yours,
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【简答题】PN结中扩散电流的方向是:由 ,漂移电流的方向 是由 。
【单选题】若有int a=1,b=2,c=3,d=4;则表达式a d) ? c : d : b的值是________。
A.
1
B.
2
C.
3
D.
4
【判断题】棘轮机构中,棘轮的转角随摇杆摆角增大而增大。
A.
正确
B.
错误
【简答题】PN结中扩散电流的方向是: ,漂移电流的方向是 。
【单选题】若有int a=1,b=2,c=3,d=4;则表达式a>b?c:d的值是( )
A.
1
B.
2
C.
3
D.
4
【判断题】作曲家黄自创作的《都市风光幻想曲》是中国电影史上的第一首电影片头曲。
A.
正确
B.
错误
【判断题】棘轮机构中,棘轮的转角随摇杆的摆角增大而减小。
A.
正确
B.
错误
【简答题】PN 结中扩散电流的方向是: 从 区到 区 ,漂移电流的方向是 从 区到 区
【判断题】PN 结中扩散电流的方向是 从 P 区流向 N 区 ,漂移电流的方向是 从 N 区流向 P 区。
A.
正确
B.
错误
【多选题】下列适合老年便秘患者的运动包括
A.
慢跑
B.
散步
C.
太极拳
D.
肛提肌运动