振动频率的单位是（）。A、次 B、赫兹 C、秒 D、米

（共5小题，每小题2分，满分10分）

先阅读短文，然后根据短文的内容判断正误，并将结果转涂到答题卡上。正确的涂A，错误的涂B。

As high school students, Sang Tian and Huang Yunru dreamed of attending one of the world’s top universities. They slaved over their studies and were in the end admitted to famous schools – only one turned out to be far more famous than the other, according to new ranking (排名)of Asia’s top schools.

Huang Yunru, 19, went to the University of Hong Kong, the No 1 school in Asia. Sang, also 19, went to Tsinghua University, which was ranked a disappointing 16th in Asia. When Sang heard the news, he couldn’t believe his ears. “What? How can it be?” he said, greatly surprised.

The new list of Asia’s top 200 universities was published last month by Quacquarelli Symonds (QS), a UK-based career and education company. The ranking have started heated discussions among Chinese people, since the mainland’s top two schools – Peking University (PKU) and Tsinghua University – were not in the top 10.

Actually, this isn’t the first time that the schools have gone on poorly in regional or global ranking. The 2010 world university list released by the magazine US News & World Report ranked Peking University at 50th and Tsinghua University at 56th. They were the only two mainland schools in the top 100. Meanwhile, 37 US universities made the top 100 list. And three of 10 Hong Kong universities made the top 50.Chinese universities’ poor performance has saddened many students. “I can’t understand their standards,” said Sang. “At least we are a university with a long, proud history.”

According to the QS list, Chinese universities are doing OK in academic peer review, with both Tsinghua and Peking University scoring a full 100. But when it comes to student-to-faculty ratio（师生比）, their ranking drops, with Tsinghua at 22th and Peking at 23rd.John Hennessy, president of Stanford University, said at the Fourth Chinese-Foreign University Presidents Forum in early May that a lack of small-group discussions has seriously affected the teaching quality at Chinese universities. This has also resulted in students being afraid to question or challenge teachers.

小题1:Peking University (PKU) and Tsinghua University were in the top 10 in the ranking of Asia’s top schools.

小题2:There were no top 100 universities in the mainland according to the ranking.

小题3:Hong Kong universities are doing much better than the Chinese mainland ones in the ranking.

小题4:Peking University (PKU) and Tsinghua University are so famous that they are not worried about the result at all.

小题5: One of the reasons for the mainland’s universities’ disappointing ranking is that there are simply not enough teachers for the large number of students.

盖板式钻模夹具，其盖板重量不超过（）

A、8kg

B、10kg

C、12kg

D、14kg

肿瘤的实质是指（）

A.肿瘤的本质

B.肿瘤的异常增生

C.肿瘤组织

D.肿瘤细胞

E.结缔组织

关于急性肾小球肾炎下列描述错误的是（）

A.多发于儿童

B.患者几乎均伴有大量蛋白尿

C.患者几乎均伴有血尿

D.部分患者可出现肾衰竭

E.如患者伴有反复发作的扁桃体炎时，可摘除扁桃体

植物修复是利用某些可以忍耐和超富集有毒元素的植物及其共存的微生物体系清除污染的一种环境污染治理新技术。植物修复系统可以看成是以太阳能为动力的“水泵”和进行生物处理的“植物反应器”，植物可吸收转移元素和化合物，可以积累、代谢和固定污染物，是一条从根本上解决土壤污染的重要途径。
下列说法中不属于植物修复优点的是( )。

A．植物修复实施简易，对土壤造成的副作用小
B．植物修复过程比物理化学过程快，比常规治理有更高的效率
C．对环境扰动少，不需要挖掘、运输和巨大的处理场所
D．植物修复不会破坏景观生态，能绿化环境，容易为大众所接受