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【单选题】
下列不属于信息安全措施的是A.
不要轻意点击陌生网友发来的链接
B.
安装防火墙
C.
经常重装计算机系统
D.
经常更换资金账户密码
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
【单选题】---What do you think of the waiter over there? ---I don’t think he is a qualified one. Hewas talking __________ while taking my order.
A.
with a phone
B.
on the phone
C.
about a phone
D.
by the phone
【单选题】---What do you think of the waiter over there? -I don’t think he is a qualified one. He was talking __________ while taking my order.
A.
by the phone
B.
with a phone
C.
on the phone
D.
about a phone
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