在同向3车道高速公路上行车,最右侧车道的最低车速为每小时60公里,车速高于每小时90公里的车辆应在中间车前上行驶,车速高于每小时110公里的车辆应在最左侧车道上行驶。
参考答案:对
阅读理解。
I'm Jeff. I'm in Beijing now. I think Beijing Opera is very interesting. I often go to see it. My friend Edward usually goes to see Chinese action movies on weekends. But I stay at home and look at pictures of Beijing Opera. I also read sad,funny or exciting stories. I like Chinese action movies, too. In a word, I love China.
根据短文内容,判断下列句子正(T)误(F)。
( )l. Jeff is in Beijing and he often goes to see Beijing Opera.
( )2. Jeff's friend likes Beijing Opera, too.
( )3. Jeff's friend usually goes to see action movies on weekends.
( )4. Jeff usually goes to see action movies on weekends.
( )5. Jeff and his friend like action movies.
在一固定容积的密闭容器中,可逆反应达到平衡的标志是( )。
A.
B.单位时间内键断裂,同时6mol键断裂
C.
D.反应混合物各组分的物质的量浓度还在改变