视神经胶质瘤()
A.视力损害早
B.多伴视 * * 水肿或萎缩
C.视力损害晚
D.多见学龄前儿童
E.可出现眼球震颤
参考答案:A, B, D, E
两个电容串联,C1容抗为5Ω,C2容抗为Ω,则()。
A.总容抗小于10Ω
B.总电容小于10Ω
C.C1电容量较C2电容量大
D.容抗与频率无关
Do you know if ____ back next week? If he _____back, please let me know.
A. he comes, will come B. will he come, comesC. he will come, comes