皮皮学，免费搜题
登录
搜题
【单选题】
1-9下面对OS不正确的描述是?A.
OS是系统资源管理程序
B.
OS是为用户提供服务的程序
C.
OS是其他软件的支撑程序
D.
OS是系统态程序的集合
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【判断题】The leading cause of America’s entry into World War I is mainly due to the damage to America’s interests.
A.
正确
B.
错误
【单选题】Into the dark apartment _______, who was quite surprised when everyone shouted “Happy Birthday”.
A.
did David walk
B.
David walked
C.
David did walk
D.
walked David
【判断题】The leading cause of America's entry into World War I is mainly due to the damage to America's interests.
A.
正确
B.
错误
【单选题】Due to the entry and exit of firms in a monopolistically competitive market:
A.
economic profits and economic losses are dissipated in the long run.
B.
economic profits persist in the long run, but not economic losses.
C.
economic losses will exist in the long run, but not economic profits.
D.
both economic profits and economic losses exist in the long run.
【单选题】____ _ he can pass the driving test is quite uncertain.
A.
If
B.
Whether
C.
That
D.
What
【单选题】His health is improving day by day. It is quite ______ that the medicine has a good effect on his disease. [ ]
A.
strange
B.
apparent
C.
complex
D.
uncertain
【单选题】Some blood types are quite common, others are regionally , and still others are rare everywhere.
A.
distributed
B.
contributed
C.
obtained
D.
Convinced
【单选题】–Frank failed the driving test again. --______ He practiced a lot and was quite confident.
A.
What if?
B.
How come?
C.
So what?
D.
Why not?
相关题目：
参考解析：
知识点：
题目纠错 0
发布
