皮皮学，免费搜题
登录
logo - 刷刷题
搜题
【单选题】
下列说法可以证明反应N 2 +3H 2 2NH 3 已达到平衡状态的是(   )
A.
1molN≡N键断裂的同时，有3molH—H键生成
B.
1molN≡N键断裂的同时，有3molH—H键断裂
C.
1molN≡N键断裂的同时，有6molH—H键断裂
D.
1molN≡N键断裂的同时，有6molH—H键生成
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】办理麻醉药品进口手续需
A.
运输凭照
B.
麻醉药品专用章
C.
麻醉药品专用卡
D.
麻醉药品购用印鉴卡
E.
麻醉药品进口准许证
查看完整题目与答案
【单选题】已知sinα ,tanα>0,则角a的终边所在的象限为( )
A.
第一象限
B.
第二象限
C.
第三象限
D.
第四象限
查看完整题目与答案
【单选题】She did not stop blaming the boy until she suddenly _____ what she said might have hurt him.
A.
noticed
B.
recognized
C.
realized
D.
liked
查看完整题目与答案
【单选题】1 GRAMMAR A Choose the best answer. She did not stop _____ until it became dark.
A.
working
B.
to work
C.
worked
D.
for work
查看完整题目与答案
【简答题】I will never drive a car again. I had an car accident today. I was driving up Fouth Avenue. I saw a bright yellow car. It was driven by a little old lady. She obviously did not see the stop sign. I c...
查看完整题目与答案
【单选题】Mrs. Davis said she did not know what might alleviate her pain.
A.
cause
B.
stop
C.
ease
D.
prevent
查看完整题目与答案
【单选题】已知 sin a >0, tan a <0, 那么是 a 所在的象限是 ( )
A.
一
B.
二
C.
三
D.
四
查看完整题目与答案
【单选题】已 知 sin A · tan A < 0 , 则角 A 所在的象限是
A.
第二象限
B.
第三象限
C.
第二或第三象限
D.
第四象限
查看完整题目与答案
【单选题】已知 sin a 0, 那么是 a 所在的象限是
A.
一
B.
二
C.
三
D.
四
查看完整题目与答案
【单选题】She did not stop _____ until it became dark.
A.
working
B.
to work
C.
worked
D.
for work
查看完整题目与答案
相关题目：
【单选题】办理麻醉药品进口手续需
A.
运输凭照
B.
麻醉药品专用章
C.
麻醉药品专用卡
D.
麻醉药品购用印鉴卡
E.
麻醉药品进口准许证
查看完整题目与答案
【单选题】已知sinα ,tanα>0,则角a的终边所在的象限为( )
A.
第一象限
B.
第二象限
C.
第三象限
D.
第四象限
查看完整题目与答案
【单选题】She did not stop blaming the boy until she suddenly _____ what she said might have hurt him.
A.
noticed
B.
recognized
C.
realized
D.
liked
查看完整题目与答案
【单选题】1 GRAMMAR A Choose the best answer. She did not stop _____ until it became dark.
A.
working
B.
to work
C.
worked
D.
for work
查看完整题目与答案
【简答题】I will never drive a car again. I had an car accident today. I was driving up Fouth Avenue. I saw a bright yellow car. It was driven by a little old lady. She obviously did not see the stop sign. I c...
查看完整题目与答案
【单选题】Mrs. Davis said she did not know what might alleviate her pain.
A.
cause
B.
stop
C.
ease
D.
prevent
查看完整题目与答案
【单选题】已知 sin a >0, tan a <0, 那么是 a 所在的象限是 ( )
A.
一
B.
二
C.
三
D.
四
查看完整题目与答案
【单选题】已 知 sin A · tan A < 0 , 则角 A 所在的象限是
A.
第二象限
B.
第三象限
C.
第二或第三象限
D.
第四象限
查看完整题目与答案
【单选题】已知 sin a 0, 那么是 a 所在的象限是
A.
一
B.
二
C.
三
D.
四
查看完整题目与答案
【单选题】She did not stop _____ until it became dark.
A.
working
B.
to work
C.
worked
D.
for work
查看完整题目与答案
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