皮皮学，免费搜题
登录
搜题
【单选题】
一连串 反应A→P→S , P 为目的产物,反应均为一级, k 1 = 1 min -1 , k 2 = 2 min -1 , 反应在反应器中进行,最佳空时为( ) min 。A.
0.5
B.
0.71
C.
0.68
D.
0.65
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】― Has Jackson finished his work today? ― I have no idea, but he ______ it when I saw him this morning.
A.
had done
B.
would do
C.
was doing
D.
would have done
【简答题】Spoken English is not well planned, but ______.
【单选题】一So you didn’t say “hello” to him last night? 一Well，I stopped and smiled when I saw him，but he _______me and walked on.
A.
ignored
B.
refused
C.
denied
D.
missed
【简答题】a well-planned mover
【简答题】相撲 練習二 二、2、
【单选题】—So why didn't you say 'hello' to him yesterday? —Well, I stopped and smiled when I saw him, but he _____ me and walked on. [ ]
A.
ignored
B.
refused
C.
denied
D.
missed
相关题目：
参考解析：
知识点：
题目纠错 0
发布
