问题
单项选择题
按照部署方式和服务对象可将云计算划分为（）
A.公有云、私有云和混合云
B.公有云、私有云
C.公有云、混合云
D.私有云、混合云
答案
参考答案：A
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按照部署方式和服务对象可将云计算划分为（）
A.公有云、私有云和混合云
B.公有云、私有云
C.公有云、混合云
D.私有云、混合云
参考答案：A
| 用方框中所给词的适当形式填空。 | |
2. Tom hopes to ____ with his old friends in America. 3. Mike was late for school ____ his illness yesterday. 4. You must ____ all the windows are closed before you leave the room. 5. We can ____ to help Mary with her lessons. |