能使草履虫在水中运动的主要结构是 A．表膜 B．纤毛 C_爱下问搜题

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问题选择题

能使草履虫在水中运动的主要结构是

A．表膜

B．纤毛

C．口沟

D．食物泡

答案

答案：B

表膜是草履虫用于呼吸的结构，依靠纤毛的摆动在水中旋转前进，食物通过口沟进入细胞内，食物在食物泡内消化吸收。

阅读理解

阅读理解。

     Mary is a student in a nurseing school. She is going to graduate (毕业) next month. She has two job offers. One is in a city hospital, the other is in a country hospital.
     The hospital in the city is large, it's a 600-bed hopital. It's a cancer (癌症) hospital. It's in a big city, near
museums and restaurants. The salary (薪水) is high, $17,000 a year. But apantment rents are high,too.
     The hospital in the country is small, it's a 50-bed hospital. It's a general hospital. It's in a beautiful area,
near lakes, rivers and mountains. The salary is average, $14,000 a year. But apartment rents are low.
     Mary likes the city and the country. She doesn't know which to choose.

The hospital in the city	The hospital in the country
large	1.______
600-bed	2.______
Near museums and restaurants	Near lakes, rivers and 3.______
4.______	$14,000
Apartments rents are 5.______	Apartment rents are low

填空题

对出租房产取得的租金收入对应的房产税，应计入的会计核算科目为（）。