皮皮学，免费搜题
登录
搜题
【简答题】
关系模型的完整性规则包括(),()和()。
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】The study shows that laying too much emphasis on exams is likely to ______students' enthusiasm in learning English.
A.
hold back
B.
hold off
C.
hold down
D.
adopt
【单选题】The aromatic ring of __________ undergoes a cycle of oxidation and reduction during the formation of active prothrombin, a blood plasma protein essential in blood clotting.
A.
vitamin E
B.
vitamin K
C.
vitamin A
D.
vitamin D
【单选题】She must have been pretty_____to fall for such an old trick.
A.
interested
B.
gullible
C.
enthusiastiC
D.
shrewd
【简答题】6921216001 X ,计算校验码 X 为多少?
相关题目：
参考解析：
知识点：
题目纠错 0
发布
