同周期的X,Y,Z3种元素,已知其最高价氧化物对应水化物的酸性强弱顺序是: HX

题型:不定项选择题

问题:

同周期的X,Y,Z3种元素,已知其最高价氧化物对应水化物的酸性强弱顺序是:

HXO4>H2YO4>H3ZO4,则 下列各判断正确的是[ ]

A.原子半径:X>Y>Z

B.单质非金属性:X>Y>Z

C.气态氢化物的稳定性:X<Y<Z

D.原子序数:X>Y>Z

考点:元素周期律
题型:不定项选择题

根据下列各句句意和空白之后的汉语提示词,在答题卡指定区域的横线上写出对应单词的正确形式,每空只写一词。

小题1:“_______(失败) is the mother of success” , as an old saying goes,

小题2:Just now, I said a certain student, not ___ (指) to you, was cheating in the test.

小题3:The weather of Xi’an in ______(十月) is a little cold, especially at night.

小题4:The girl has_______(克服) the bad habit of being late for school.

小题5:Having waited for such a long time, the lady got a bit _____ (不耐烦的).

小题6:The People’s Republic of China was _______ (成立) on October 1, 1949.

小题7:Cabbage, carrots and _____ (西红柿) are my favorite vegetables.

小题8:Faced with the pressure of the coming college entrance examination, many students feel ______(精神上) tired.

小题9:Parents should ______(尊重) children’s choices in their future life.

小题10:Every passenger shall take two pieces of______ (行李) on board. 

题型:不定项选择题

生活中的物质不属于有机物的是(  )

A.甲烷

B.酒精

C.淀粉

D.碳酸

题型:不定项选择题

下列影响人际吸引的主要因素中,( )可以分为浅层因素和深层因素。

A.个性因素

B.移情效应

C.互补性因素

D.相似性因素

题型:不定项选择题

Being asked if he could come to the party that night,                .

A.nobody said anything

B.they didn’t get an answer from him

C.nothing was said by him

D.John nodded his head and left the room

题型:不定项选择题

OAPI中一台AFAX可连接几台MFP()

A.1

B.2

C.3

D.4

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