皮皮学，免费搜题
登录
搜题
【判断题】
机会成本是指为了得到某种东西所必须放弃的东西。A.
正确
B.
错误
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
【简答题】When you call an abroad number in China, you should put ______ before the country code.
【单选题】___the carrots before you put them into the pot, ___.
A.
Cut up:;don't you
B.
Cut down;do you
C.
Cut up;will you
D.
Cut off;won't you
【单选题】(Be sure) to put out the light (before) you (leave). Yes, I'll (put out it).
A.
Be sure
B.
before
C.
leave
D.
put out it
【简答题】估计 的运算结果应在（ ） A．1到2之间 B．2到3之间 C．3到4之间 D．4到5之间
【单选题】It is better to ____ the lights before you leave here.
A.
put out
B.
put off
C.
put on
D.
put up
【单选题】the carrots before you put them into the pot, ?
A.
Cut up; don't you
B.
Cut dow; do you
C.
Cut up; will you
D.
Cut off; won't you
相关题目：
参考解析：
知识点：
题目纠错 0
发布
