血红素的合成部位在造血器官的()。
A.内质网与线粒体
B.线粒体
C.线粒体与胞液
D.胞液与内质网
E.微粒体与核糖体
参考答案:C
When he was a child, he tried to find ways_______ people________ life more.
A.to help, enjoy
B.help, to enjoy
C.help, enjoying
D.to be helped, to enjoy
后 * * 损伤多见于哪?()
A.骑跨伤
B.枪弹、锐器伤
C.骨盆骨折
D.腰部撞击伤
E.盆腔手术或腹膜后手术