皮皮学，免费搜题
登录
搜题
【单选题】
微机硬件系统分为主机和外部设备两大部分,其中主机包括A.
运算器、存储器和控制器
B.
运算器、控制器
C.
输入设备、输出设备
D.
存储器、控制器
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】—Do you know _____ now? —Yes, in the People's Hospital. [ ]
A.
where is John working
B.
where did John work
C.
where John is working
D.
where John worked
【简答题】( ) 1. John is in the cinema now. ( ) 2. John wants to buy things with the coupons. ( ) 3. The coupons can be used at any one of the company’s stores in town. ( ) 4. There aren’t any such stor...
【单选题】-Where John?一In the library. He there for an hour.
A.
has been, has gone
B.
is, has been
C.
was, went
D.
had been, went
相关题目：