在不同温度下的水溶液中离子浓度曲线如图所示,下列说法不正确的是() A.图中五

题型:选择题

问题:

在不同温度下的水溶液中离子浓度曲线如图所示,下列说法不正确的是(    )

A.图中五点Kw间的关系:B>C>A=D=E

B.C点一定是纯水

C.D点可能是醋酸溶液,E点可能是醋酸钠溶液

D.100℃时,将pH=2的硫酸与pH=10的KOH等体积混合后,溶液显中性

考点:燃烧热水的离子积常数水电离的影响因素水的电离平衡
题型:选择题

B

I am going to tell you an unbelievable story. This afternoon a __41___(poor)  dressed gentleman came into my restaurant. Nobody knew who he was and __42___he came from. After __43___(sit) down, he ordered a lot of food. He stared at it and then _44___ (eat) it up very quickly.

To be_45___, we doubted whether the man was able to pay for the food. When he was asked to pay the bill, the gentleman asked if we would mind__46__ (wait) just a few minutes. Then we were _47___ (shock) to see that he took a million pound bank note. __48__(fortunate), we could not change the bank note as it was too large. So I gave this strange but very rich man a _49__ dinner, in the hope__50__he might come to our restaurant again.

题型:选择题

目前使用比较广泛的墙面装饰材料是()。

A.隔声材料

B.涂料

C.装饰壁纸

D.人造板材

题型:选择题

法兰克福学派第二代领袖人物是()

A.卢卡奇

B.葛兰西

C.霍夫兰

D.霍克海默

题型:选择题

中华按蚊成蚊具有鉴别意义的形态特征是()。

A、中足基节外侧有白色鳞簇

B、腹侧膜上有“T”字形暗斑

C、翅前缘脉基部淡色

D、翅V5-2有翅繸白斑

E、雌蚊触须顶端二白环约等宽

题型:选择题

竹枪一杆,打得妻子散,未闻枪声震天;铜灯半盏,烧尽田地房廊,不见烟火冲天。”在有关该现象的战争结束后,西方列强逼迫清政府签定的不平等条约是()

A.《南京条约》

B.《北京条约》

C.《马关条约》

D.《辛丑条约》

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