皮皮学，免费搜题
登录
搜题
【单选题】
SQL的全局约束是指基于的检查子句和()。A.
非空值约束
B.
域约束子句
C.
断言
D.
外键子句
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】He should have been working, but he is obviously engaged otherwise .
A.
in a different way; differently
B.
apart from that; in other aspects
C.
if not , if conditions were different
【单选题】(句子释义)When I show the documents to Dyson, he is obviously shaken.（）
A.
…he doesn’t accept what he has seen.
B.
…he begins trembling all over with fear.
C.
…clearly, he is indifferent.
D.
…clearly, he is shocked.
【单选题】一圆轴用碳钢材料制作，当校核该轴刚度时，发现单位长度的扭转角超过了许用值，为保证此轴的扭转刚度，以下哪种措施更为有效？答：（ ）
A.
改用合金钢材料
B.
改用铸铁材料
C.
减小轴的长度
D.
增加圆轴直径
【单选题】In this Senior Management post we need someone who can keep a cool head in a crisis and react quickly to events. The applicant says he suffers from a phobia about flying, and panics especially when an...
A.
It assumes phobias are not treatable or capable of being eliminated.
B.
It assumes that the person appointed to the job will need to travel abroad.
C.
It assumes that a specific phobia indicates a general tendency to panic.
D.
It assumes that people who stay cool in a crisis will be good leaders.
E.
It fails to take into account other qualities the person might have for the post.
【单选题】He is obviously ______ himself at the news of winning the Lottery.
A.
on
B.
beyond
C.
beside
D.
by
【简答题】____是指仅在某一特定时间才发作。
相关题目：
参考解析：
知识点：
题目纠错 0
发布
