皮皮学,免费搜题
登录
搜题
【判断题】
两个连续余弦函数的和一定是周期函数。
A.
正确
B.
错误
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【单选题】往复压缩机一个循环工作过程的顺序是()。
A.
吸入,膨胀,压缩,排出
B.
膨胀,吸入,压缩,排出
C.
压缩,排出,吸入,膨胀
D.
排出,吸入,膨胀,压缩
【简答题】Each NOC of the competitor placed first in the FEI Dressage Rankings on May 1,2008,in each of the following regions or regional groupings will become qualified to enter one individual.
【单选题】往复压缩机切换过程中操作正确的是()
A.
空试备机正常后,降原运转机组负荷
B.
备用机组满负荷后,停下原运转机组
C.
逐渐关小备机的返回线同时打开原运转机的返回线
D.
备机负荷从0-100%的同时降原运转机的负荷从100%-0
【单选题】董老师总是希望在课堂上尽可能地满足学生爱与被爱的需要。董老师的做法体现了哪种课堂管理取向()
A.
建构取向
B.
行为取向
C.
认知取向
D.
人本取向
【单选题】往复式压缩机压缩过程的是()
A.
绝热
B.
等热
C.
多变
D.
仅是体积减小压力增大
【单选题】After Peter finished writing the letter, he ___________ his homework.
A.
went on with
B.
went on to do
C.
went on doing
D.
went on
【简答题】Time wasn’t enough ,so Peter ________ have finished his homework today(can’t , mustn’t)
【单选题】NOC stand for
A.
network operation center
B.
network operation  control
C.
network operation coach
D.
network operation  coordination
【单选题】一Has Peter finished his work? 一Yes.He finished a long time ago.
A.
Right
B.
Wrong
【单选题】After peter finished his story, they got to the door of their room.
A.
Right
B.
Wrong
C.
Doesn't say
相关题目: