患者外周血涂片检查红细胞较小，中央淡染区扩大，RDW为＞17.9%，可能诊断为
A. 白血病
B. 某些继发性贫血
C. 缺铁性贫血
D. 巨幼细胞性贫血
E. 铁幼粒细胞贫血
查看答案
治疗方法首选
A. 三叉神经显微血管减压术
B. 脑深部刺激术
C. 三叉神经后根切断术
D. 神经局部封闭术
E. 三叉神经分支抽出术
North America borders both the North ______ and the North ______.
Arctic Ocean, Indian Ocean
B. Atlantic Ocean, Pacific Ocean
C. Atlantic Ocean, Arctic Ocean
D. Indian Ocean, Pacific Ocean
Which of the following best expresses the main idea of the passage
A. It is optical fibers and lasers that have made the information superhighway possible.
B. People can communicate with each other more quickly now on the Internet.
C. It has taken quite a long time for the Internet to come into existence.
D. If one is seriously ill, he can always get help via the modem communication system.
本手术术后有效率一般为
A. 70%～80%
B. 80%～85%
C. 85%～90%
D. 90%～95%
E. 95%～100%
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