大风浪中的锚泊船,会产生偏荡,在什么情况下其锚链受力最大()?
A.船舶偏离平衡位置最大时
B.船舶风舷角最大时
C.锚链与风的夹角最大时
D.整个偏荡周期中
参考答案:B
Zheng says that the most dangerous thing about a credit card is____ a person isn’t always aware of the fact____ he’s spending money.
A.that; that
B.what; that
C.that; what
D.what; which
郁金药材中呈纺锤形,断面橙黄色的是()
A.黄丝郁金
B.绿丝郁金
C.温郁金
D.桂郁金
E.姜黄