皮皮学，免费搜题
登录
搜题
【单选题】
下列有关附加阻力的说法正确的是________。A.
附加阻力是由于发动机外表面有压力差而产生的阻力
B.
附加阻力是由于发动机短舱外表面粗糙而产生的一种阻力
C.
附加阻力是由于假设推力计算控制体前端位于发动机远前方截面而产生的计算误差
D.
实际上存在的一种阻力，可以用正确的计算方法加以修正
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】Whenever there is dispute between the two countries over the border area, a ______ of refugees can be predicted.
A.
stream
B.
flow
C.
surge
D.
emergence
【单选题】—What do you think of Andrew ? —There are some things that are not easy to , and his coldness is one .
A.
put aside
B.
put up with
C.
think of
D.
get along with
【单选题】Whenever there is a conflict between public interest and private rights, India will ______ on the side of private rights and China towards public interest.
A.
error
B.
lean
C.
err
D.
incline
【单选题】—What do you think of the _______car? —I think it is much better than his_______one.
A.
latest, last
B.
lately, lastly
C.
early, lately
D.
early, lastly
【单选题】—What do you think of them? —Well, ________ this dress ________ that one is fit for you. They are too big. [ ]
A.
both; and
B.
either; or
C.
neither; nor
D.
not only; but also
【单选题】关于髓核的描述错误的是
A.
是富有单行的半流体性的胶状物质
B.
占椎间盘切面的50%～60%
C.
一般位于纤维环的前中部
D.
能随外界的压力变化改变位置和形状
E.
具有缓冲外力，保证脊柱弹性的作用
相关题目：
参考解析：
知识点：
题目纠错 0
发布
