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【简答题】
Once, the famous scientist Einstein travelled to many places in America to give lectures. He travelled in a __ 1__ , and soon made friends with his driver. Each time Einstein gave the lecture, his driver __ 2__ sat in the front row and listened to him very carefully. The __ 3__ lecture was given so many times that the driver learned it well enough to give it himself. One day, when Einstein was __ 4__ about it, he asked the driver to give the lecture for him in a small town. That evening, both Einstein and the driver went into the lecture room. __ 5__ there had seen Einstein before. When the driver took his place, everybody applauded (鼓掌). Then he began the lecture. __ 6__ it was over, the people warmly applauded. The driver turned to look at Einstein. Einstein nodded with a smile on his face. When they began to leave the lecture room, a man __ 7 __ them and asked the driver a very __8__ question. The c river listened carefully, then he __ 9__ and said the question was interesting but really quite easy. To show how easy it is. I'll ask my __ 10__ to answer it,' said the driver. 小题1: A.bus B.train C.plane D.car 小题2: A.always B.never C.sometimes D.hardly 小题3:A. different  B. same       C. uncomfortable  D strange 小题4:A. spoken     B. told       C. said            D shouted 小题5: A.Somebody B.Everybody C.Nobody D.Anybody 小题6: A.If B.Although C.However D.When 小题7: A.carried B.believed C.stopped D.pleased 小题8: A.difficult B.easy C.relaxing D.perfect 小题9: A.smiled B.cried C.refused D.jumped 小题10: A.student B.driver C.teacher D.uncle
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【单选题】正常人动脉血液pH值的参考范围是
A.
7.35~7.40
B.
7.35~7.45
C.
7.40~7.50
D.
7.50~7.55
E.
7.50~7.60
【多选题】博客营销定位有()
A.
目标定位
B.
博客内容定位
C.
博主身份定位
D.
博客网站定位
【单选题】下列药物中,具有酸碱两性的是
A.
维生素A
B.
维生素B1
C.
维生素B2
D.
维生素B6
E.
维生素C
【单选题】间接碘量法中,滴定至终点的溶液迅速又变为蓝色的原因是
A.
溶液中淀粉过多
B.
空气中氧的作用
C.
反应速度太慢
D.
待测物与KI反应不完全
【单选题】人体血液正常的 PH 值得范围是
A.
7.35-7.45
B.
7.25-7.35
C.
7.15-7.25
D.
7.45-7.55
E.
7.55-7.65
【单选题】光度法的相对误差为2%,称样时在下列称量结果中最合理的是
A.
0.2g
B.
0.21g
C.
0.213g
D.
0.2138g
【判断题】正常人,血液的pH值总是维持在7.35~7.45范围内。
A.
正确
B.
错误
【简答题】已知SO 2 和CO 2 都是非金属氧化物,两者的实验室制法和化学性质都具有一定的相似性.但SO 2 比CO 2 易溶于水,与水反应生成H 2 SO 3 ,H 2 SO 3 易与O 2 化合. Ⅰ.请写出H 2 SO 3 与O 2 化合的化学方程式______. Ⅱ.又知2Mg+CO 2 点燃 . 2MgO+C.某研究性学习小组用如图所示的装置进行镁与二氧化硫反应的实验. (1)甲装置用来制取SO...
【多选题】微信营销和微博营销的区别有( )
A.
微博推广范围大,微信推广深度高
B.
微博粉丝有所分类,微信粉丝定位更精准
C.
微博互动一般,微信互动形式多
D.
微博更适合品牌推广,微信适合老客户
【单选题】被认为是中世纪最后一位诗人、新世纪最初一位诗人的是( )。
A.
但丁
B.
彼得拉克
C.
薄伽丘
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