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问题 单项选择题

下列哪项不是肺硅沉着症引起肺源性心脏病的原因（）。

A.硅结节形成

B.硅肺性空洞形成

C.呼吸障碍造成缺氧

D.肺血管破坏、减少

E.肺间质弥漫性纤维化

答案

参考答案：B

选择题

下列加粗词语解释有误的一项是

A．与饮食之气相薄 薄：迫近 　惟大辟无可要 要：要挟

B．文书下行直省，多潜易之 易：改动，变动 　俾困苦不可忍 俾：使，让

C．行刑者先俟于门外 俟：等候 　　　　　　　然犹质其首 质：购买

D．作自挽诗，每欲引决 引决：自裁，自杀 　　不次年月 次：按顺序排列

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单项选择题

Uncle Li and Uncle Wang are good friends. They live next to each other and their farms are both at the foot of the mountain. So they can help each other. But neither of them likes to use his head. They’re both poor though they work hard. Most villagers have built new houses, but they still live in the low and broken houses. They never find out why.
Once Uncle Li went to the town to buy some medicine for his wife. In the town he heard apples in a city were expensive. He told Uncle Wang about it as soon as he went back. They decided to carry some apples to the city. They borrowed some money from their friends and bought nearly 1,000 kilograms of apples in the villages and carried them to the city on a tractor. Bad luck! A lot of apples has already been carried there when they arrived. A few days later they had to sell them at a low price. They felt unhappy and returned to their village.
"I can’t understand why we sustained (蒙受) losses in business while others always profit (盈利)" Uncle Li asked one day.
"The tractor was too small" Uncle Wang said without thinking. "We’ll carry more apples on a truck next time!"
"I agree!" said Uncle Li. "How foolish we were!\

Uncle Li and Uncle Wang were unhappy because ______.

A．they had sustained losses in business

B．they had lost some money in the city

C．something was wrong with the tractor

D．other people profited in the city
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