【单选题】下面的选项哪个是错误的( )
B.
C程序中的一个变量,代表内存中一个相应的存储单元,变量的值可以根据需要随时修改
D.
在C程序中,正整数可以用八进制、十进制和十六进制的形式来表示
【简答题】我国元代数学著作《四元玉鉴》的作者是( )
【单选题】Don' t be anxious ______her safety, She' be OK.
【单选题】The government is asked to improve school bus safety, ______ ? [ ]
【单选题】A “stopper” is().
A.
a short length of line used for temporarily holding another line
B.
a snatch block for handling a topping lift
C.
an engine order telegraph
D.
the brake on a cargo winch
【单选题】The main advantage of a Chinese stopper over the one line stopper is that it ______.
A.
will not jam on the mooring line
C.
is easier to use when under heavy tension
D.
is safer to use when under heavy tension
【简答题】我国元代数学著作《四元玉鉴》的作者是 ( )
【判断题】台北孔庙的照壁叫“万仞宫墙”,其中“仞”是古代度量单位,一仞等于3尺。()
【单选题】The safety stopper that prevents the anchor cable from running free if the cable jumps the wildcat is the ______.