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【多选题】
实现数据库安全性控制的常用方法和技术有——
A.
用户标识和鉴别
B.
存取控制
C.
视图机制
D.
审计
E.
数据加密
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参考答案:
举一反三
【多选题】All risk coverage provide insurance against all risks of damages to the cargos includes(    ).
A.
losses resulting from marine perils  
B.
general average
C.
particular average                    
D.
war and strikes
【单选题】全部的最小项之和恒为
A.
0
B.
1
C.
0或1
D.
非0非1
【单选题】下列有关基因工程技术的应用中,对人类不利的是()
A.
制造“工程菌”用于药品生产
B.
创造“超级菌”分解石油、DDT
C.
重组DNA诱发受体细胞基因突变
D.
导人外源基因替换缺陷基因
【单选题】下列有关基因工程技术的应用中,对人类不利的是 [     ]
A.
制造工程茵用于药品生产
B.
创造“超级菌”分解石油、DDT
C.
重组DNA诱发受体细胞基因突变
D.
导入外源基因替换缺陷基因
【单选题】Could you ___ us ___some information about all kinds of vacations?
A.
provide, for
B.
provide, with
C.
give, with
D.
offer, at
【单选题】全部的最小项之和恒为( )
A.
0
B.
1
C.
非0非1
D.
0或1
【单选题】To respond to risks in emerging markets, MNCs must do all of the following except:
A.
Limiting equity investments
B.
Avoiding joint ventures
C.
Collaborating with a local partner
D.
Encouraging shared ownership structures
【简答题】完成第一章绪论部分知识点的思维导图,拍照上传。
【单选题】Nowadays airports provide all kinds of services 查看材料
A.
in the development of air transportation
B.
the earliest passenger flights were successfully operated
C.
to make travel easy and pleasant for the passengers
D.
to provide different services
E.
the shortage of qualified pilots
F.
traveling by air was very cheap
【单选题】Not all MNCs are confident about international investment in countries with:
A.
Low labor costs
B.
Political unrest
C.
Emerging economies
D.
Cultural differences
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