V形块的工作部位是V形槽的()。
A.两侧面
B.槽顶的两条线
C.槽底
D.顶面
参考答案:A
—Does Bob have vegetables for dinner?
—______. But his sister has some carrots.
A.Yes, he has
B.No, he hasn’t
C.Yes, he does
D.No, he doesn’t
下列哪项不是甲亢的诊断要点()。
A.甲状腺抗体阳性
B.性情急躁,易激动
C.有突眼征
D.两手颤动
E.甲状腺肿大,常可扪及震颤或听到血管杂音