多于5岁以前发病，腹部有巨大包块是本病的特点，常有发热和高血_爱下问搜题

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问题单项选择题

多于5岁以前发病，腹部有巨大包块是本病的特点，常有发热和高血压，血中肾素活性矛口红细胞生成素可高于正常

A．肾母细胞癌
B．肾癌
C．膀胱癌
D．肾盂肿瘤
E．肾囊肿

答案

参考答案：A

阅读理解

阅读理解。

Japanese toy maker, Sega Toys Company, made the world's smallest piano. The piano has 88 keys and each key is only 4 mm wide. It weighs 2.5 kg. It was reported that the piano was put on the market in Japan on April l, 2007 at 47000 yen.	The kiwi fruit (猕猴桃) is very popular all over the world. It's planted in China, New Zealand, the United States and many othercountries. It's rich in Vitamin (维生素) C and Vitamin E. It's good for people. Its leaves can be used as medicine.
Almost 5000 years ago, people in Egypt cleaned their teeth with a kind of powdered (成粉状的) egg shells and other things. They did that with their fingers.The Greeks, the Romans, the Chinese and the Indiansalso did a lot for the development of toothpaste.	Football was invented in England in 1863. The Football Association Challenge Cup was organized in 1872. The FIFA was founded (成立) in 1904. Today, 203 countries are FIFA members. Football became an Official (正式的) Olympic event in 1908.
Popcorn was very popular in America from the 1890s. Street sellers used to bring poppers through streets. At that time, a banker started his popcorn busi ness after his bankfailed. He made enough money and bought three large farms.	In 1895, American's William Morgan invented a new indoor game, "Mintonette," which later became volleyball. It was an inexpensive sport, compared with two other games, basketball and tennis that were played by the rich.

1. In ancient Egypt, people cleaned their teeth with their _____.

A. toothbrushes
B. fingers
C. modem toothpaste

2. The FIFA was founded in _____.

A.1895
B.1872
C.1904

3. The banker who had made enough money bought _____.

A. three large farms
B. the world's smallest piano
C. a kind of powdered egg shells

4. From the passages, we know _____ has rich Vitamin C and Vitamin E.

A. the popcorn
B. the egg
C. the kiwi fruit

5. How many ball games are mentioned in the passages above?

A. Three.
B. Four.
C. Five.

问答题简答题

平波电抗器在结构上可分哪两种类型？区别是什么？