题目
A sextant having an index error that is "off the arc" has a ______.
A.positive correction
B.dip error
C.negative correction
D.semidiameter error
第2题
A.The objects lie in a straight line
B.The vessel is inside of a triangle formed by the objects
C.The vessel is outside of a triangle formed by the objects
D.A circle will pass through your position and the three objects
第3题
Having worked for three hours or so they stopped _____ a rest.
A、taking
B、to take
C、having
D、having taken
第4题
Mr.Green is ______ in having a beautiful wife.(fortune)
第6题
Turn-talking refers to having the right to speak by turns. ()
为了保护您的账号安全,请在“赏学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!