皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【单选题】
苯酚亲电取代反应是由于 ( )
A.
羟基的诱导效应大于共轭效应,使苯环电子云密度增大
B.
羟基只具有共轭效应
C.
羟基的共轭效应大于诱导效应,使苯环电子云密度增大
D.
羟基只具有诱导效应
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【单选题】影片《情书》中有着含蓄、纯美的爱恋的一男一女同名同姓,叫做________
A.
博子
B.
藤井树
C.
岩井俊二
D.
小林大悟
【单选题】No one knew what because of the thick fog.
A.
he had happened
B.
had happened to him
C.
had he happened
D.
has happened to him
【单选题】甲公司与孙某签订劳动合同,约定合同有效期1年,月工资2000元,试用期2个月,当地最低工资标准为1500元/月。根据劳动合同法规定,甲公司在试用期内至少支付给孙某的月工资是()。
A.
2000元
B.
1500元
C.
1600元
D.
1200元
【单选题】______ home when it began to rain.
A.
No sooner had he left
B.
No sooner he left
C.
Hardly had he left
D.
Hardly did he leave
【单选题】Only then _________that he hurt her feeling.
A.
did he realize   
B.
had he realized   C. he realized D. he had realized
【单选题】关于下肢静脉曲张病人的术后护理,正确的是
A.
患肢制动
B.
抬高患肢30°
C.
卧床1周
D.
绷带一般包扎2天
E.
下肢深静脉血栓形成者予患肢按摩
【判断题】通过利润表可以反映企业的收入情况。( )
A.
正确
B.
错误
【简答题】Long ago there was a poor farmer in Russia. He had been very with everything he had. However, when he found his elder brother was than him, he felt disappointed. So he hard about how he could also be ...
【简答题】某市劳动行政部门在对甲公司进行例行检查时,发现甲公司存在以下行为: (1)2009 年 2 月 1 日,甲公司在与王某签订劳动合同时,以工作证押金的名义向王某收取 200 元,至今尚未退还王某。 (2) 张某自 2009 年 4 月 1 日起开始在甲公司工作,月工资 3000 元。直到 2009 年 7 月 1 日,甲公司才与张某签订了书面劳动合同。 (3) 孙某自 2009 年 1 月 1 日起...
【单选题】______harder, he would have got through the exams.
A.
Had he worked
B.
He had worked
C.
Should he work
D.
He worked
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题