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【多选题】
常用的安全控制方法有A.
强制存取控制
B.
自主存取控制机制
C.
视图机制
D.
角色机制
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】关于肝脏的检查前准备及检查方法正确的是
A.
患者检查前需禁食12小时
B.
急症重症患者需禁食8小时
C.
婴幼儿检查前应禁食3～5小时
D.
一般采用的探头频率为5MHz
E.
以上都不正确
【单选题】Everything is full of yellow dust because of the sandstorm（沙尘暴）. ！
A.
What terrible a weather
B.
What terrible weather
C.
How terrible a weather
D.
What a terrible weather
【单选题】What box is it ? A .It is full of stones . B.It is full of nails.
A.
It is full of stones .
B.
It is full of nails.
【单选题】The scientists have absolute freedom as to what research they think it best to______.
A.
engage
B.
devote
C.
seek
D.
pursue
【单选题】Their employers are committed _____ full disclosure of what they know.
A.
With
B.
in
C.
to
D.
for
【单选题】---_____________? --- It’s red and yellow.
A.
What color is the jacket
B.
How are you
C.
What’s this in English
D.
What’s that
【单选题】What is the characteristic of learners of special English?
A.
They want to change me way English is taught.
B.
They learn English to find well-paid jobs.
C.
They want to have an up-to-date knowledge of English.
D.
They know clearly what they want to learn.
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