用20根小棒,每4根摆一个正方形,可以摆( )个正方形,就是表示( )里面包含( )个( ),列式是:( )。
5;20;5;4;20÷4=5
精液中含有纤溶酶,其来源是()
A.精囊液
B.前列腺液
C. * * 球腺液
D.附睾分泌物
E. * * 旁腺液
The engine of the ship was out of order and the bad weather________ the helplessness of the crew at sea.
A.added to
B.resulted from
C.turned out
D.made up