皮皮学，免费搜题
登录
搜题
【单选题】
在UNIX/Linux系统中，目录结构采用（）。A.
单级目录
B.
二级目录
C.
单纯树形目录
D.
带链接树形目录
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】People need something to ________ and to ________ what they're doing, and we hope that by doing these small gestures we're ________ to that.
【单选题】—We're doing a lot to protect our environment, but it is not good enough. —So we should try ______ to look after it. [ ]
A.
hard
B.
harder
C.
hardest
D.
hardly
【简答题】From time to time, we all get a bit down. Maybe we are feeling bad because we’re not doing well with our goals. There are many reasons for feeling down, but I’m not able to discuss all of them. ___小题1...
相关题目：
参考解析：
知识点：
题目纠错 0
发布
