若某星球的密度与地球相同,它表面的重力加速度是地球表面重力加速度的4倍,则该星球的第一宇宙速度是地球第一宇宙速度的[ ]
A.1/4倍
B.4倍
C.16倍
D.64倍
答案:B
第二卷
第四部分:书面表达(共三节,满分40分)
第一节 短文改错(共10小题;每小题1分,满分10分)
假定英语课上老师要求同桌之间交换修改作文,请你修改你同学写的以下作文。文中共有10处语言错误,错误涉及一个单词的增加、删除或修改。
增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。
删除:把多余的词作斜线(\)划掉。
修改:在错的词下划一横线,并在该词下面写出修改后的词。
注意:1. 每处错误及其修改均仅限一词;
2. 只允许修改10处,多者(从第11处起)不计分。
Dear Ms Smith,
I am secretary of the City Student Union (CSU). We were organizing an art exhibition for high school students in city. This will be held on the 9th of July in the Exhibition Hall of Beihai. More than 1000 painting will be on show, but high school students and teachers from all the eight districts will come to the event. As you are very popularly with us Chinese high school students, we’d like to invite for you to the exhibition. We would be grateful when you could join them that day.
Looking forward to hear from you soon.
Yours,
Li Ming
全口义齿初戴,易咬舌的原因是()
A.后牙排列偏颊
B.后牙排列覆盖过大
C.后牙区基托翼缘过薄
D.上颌结节区,磨牙后垫区基托过厚
E.后牙排列覆盖过小