皮皮学，免费搜题
登录
搜题
【单选题】
焊缝对称布置的结构,( )焊工对称地施焊。A.
奇数
B.
偶数
C.
单数
D.
任意数
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
【多选题】寿命期不等的互斥方案比选，当几个互斥型方案的寿命不等时，不能直接进行比较。通常选择（ ）进行比较，以保证时间可比性。
A.
现值法
B.
最小公倍数法
C.
年值法
D.
内部收益率
E.
研究期法
【简答题】幼儿园教育活动,是教师以多种形式有目的、有计划地引导幼儿生动、活泼、 的教育过程。
【单选题】(非谓语动词)Having stayed up late, I was too sleepy to keep my eyes _______ that night.
A.
to be open
B.
open
C.
opening
D.
being open
【单选题】Having stayed up late, I was too sleepy to keep my eyes _______ that night.
A.
to be open
B.
open
C.
opening
D.
being open
【单选题】He stayed up too late every night,______ to catch up with his classmates.
A.
Having determined
B.
being determined
C.
determined
D.
to determine
【单选题】Mary feels tired and sleepy, she wishes she ________ solate last night. A)didn’t stayup B) wouldn’t stay up C) hadn’t stayed up D) wounldn’t have stayed up
A.
didn’t stay up
B.
wouldn’t stay up
C.
hadn’t stayed up
D.
wounldn’t have stayed up
相关题目：
参考解析：
知识点：
题目纠错 0
发布
