电子计算机体层扫描(CT)的适应证是,除了:
A.眼内肿物B.血管畸形C.微血管瘤D.眶骨骨折E.眼内异物
参考答案:C
1644年,迁都北京的清朝皇帝是 [ ]
A、努尔哈赤
B、皇太极
C、顺治帝
D、康熙帝
A group of young Americans have come to Beijing for a visit. Half of them, ___is, 50 persons, can speak Chinese fluently.
A.that
B.which
C.who
D.it