对下列课外实验活动的叙述，不正确的是（） A．用小卵石、_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题选择题

对下列课外实验活动的叙述，不正确的是（　　）

A．用小卵石、活性炭和细沙等物品可制作简易净水器

B．将明矾晶体悬挂在饱和明矾溶液中，晶体的形状可改变但质量不变

C．利用柠檬酸具有酸的性质，可在碳酸氢钠溶液中加入柠檬酸制汽水

D．将少量高锰酸钾晶体放入汽油中振荡，可形成紫红色的溶液

答案

答案：D

完形填空

Nicknamed the Golden Music Boy, 25-year-old Hu Yanbin, was born and 36 up in Shanghai. At the age of 15, he made a wish that he would make his own album before he was 18. Fortunately, the  37    boy’s dream came true. His first album Adept with Both Pen and Sword   38  in 2002 and he became the first mainland artist to  39   a solo album ( 专辑) in the mainland, Hong Kong, and Taiwan   40   at the same time. The album  41   him to become a popular star.
His success is not only because of his excellent singing  42    , but also because of his talent in song   43   . Before his album was made, Hu Yanbin’s    44   company tried to invite someone else to write several songs 45    him. None of them were as good as they are hoped.  46  Hu Yanbin came into the office with a guitar on his back and played several songs.     47  , everyone in the office really liked these tunes and they decided to  48   them on his first album.
Some people would 49 this rising star with Jay Chow from Taiwan, but Hu says his musical 50  is quite different from Jay Chow’s,  51  he likes Jay Chow’s music.
With many music awards already in his  52 , Hu Yanbin seems to be  53   up with many of the superstars in the country. Though some people don’t like him and say 54   things about him, he says that it doesn’t  55 him. All he plans to do is focusing on his music and bringing out more and better songs for his fans.

D．performance

A．To his surprise

C．To be honest

B．even though

小题18:A keeping B. coming C. catching D. putting

单项选择题

关于AIDS无症状感染期的描述，正确的是（）

A.抗-HIV阴性

B.血中一般检测不出HIV

C.持续时间较长，可达数年或更长

D.无传染性

E.常出现口腔毛状白斑