红军主力长征至大凉山彝族地区时，红军总参谋长（）同彝族果基部

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问题单项选择题

红军主力长征至大凉山彝族地区时，红军总参谋长（）同彝族果基部落首领歃血为盟，实现了民族团结，使红军顺利地通过这个地区。

A、徐向前

B、刘伯承

C、叶剑英

D、林彪

答案

参考答案：B

阅读理解

阅读理解。

Yukio comes from Japan. He is now in China. He is twelve years old. He has yellow skin(皮肤),

black hair and black eyes. Li Lei is Yukio's (由纪夫的) friend. He comes from China. He is thirteen.

He has yellow skin, black hair and black eyes, too. Jim is Yukio's friend, too. He is from Canada. He

is twelve. He has blond hair and blue eyes. The boy in purple is Li Lei and the one in white is Jim.They

are good friends.

根据短文内容，判断正（T）误（F）。

( )1. Yukio has blue eyes.

( )2. Jim has yellow skin and black hair, but Yukio doesn't.

( )3. Jim is in white and Li Lei is in purple.

( )4. Li Lei is 12 years old.

( )5. They aren't good friends.

单项选择题

在硬岩中打底板要向下倾斜，但眼底不得超过轮廓线（）且眼孔钻毕立即堵塞眼口。

A、5cm

D、10cm

C、15cm

D、20cm