sin(-270°)
=sin(-360°+90°)
=sin90°
=1.
故选D
在综合布置地下管线产生矛盾时,关于避让原则,下列说法错误的是( )。
A.工程量小的让工程量大的;现有的让新建的
B.压力管让自流管;管径小的让管径大的
C.易弯曲的让不易弯曲的;临时性的让永久性的
D.检修次数少的和方便的让检修次数多的和不方便的
Semisubmersibles A and B are identical. However,A is more tender than B. This means that A relative to B has a().
A.lower KG
B.smaller GM
C.smaller roll angle
D.larger GZ