(12分) Ba2＋是一种重金属离子，有一环境监测小组欲利用Na2S2O3、KI

根据短文判断下列句子的正确 (T) 与错误 (F)。

     Jen was reading a newspaper. A note in the news- paper said, "Write a story about why your Mom is

the best Mom. The ten best stories will each win a nice present for Mom. Send your stories to this newspaper."

     Jen thinks her Mom is the best Mom, so she wrote about her Mom. "My Mom loves and cares for us. She

listens to our problems. She helps us feel better when we are sad. Even though she works, she spends time with Ken, Jill and me, reading to us and helping us with our homework each night. When she is angry, she doesn't

yell. She is teaching us to be kind and work hard." Do you think Jen will win?

( )1. Jen knew about writing the story from her friend.     

( )2. Ten best stories will each win a nice present for Mom.

( )3. Jill wrote about his mother.                          

( )4. There is only one child in Jen's family.              

( )5. Jen's Mom is very patient with her children.          

下列哪种情况可行输卵管粘堵术（）

A.盆腔感染

B.生殖道畸形

C.严重神经官能症

D.生殖道肿瘤

E.乳腺增生

据中国新闻网报道，2006年5月24日，长沙市民王先生在家中整理物品时，发现一张其母亲跳“忠”字舞的照片。据其母介绍，当时，为了表达对毛 * * 的忠诚，她花了一个多月的时间排练了这个“忠”字舞。据所学知识判断，该照片拍摄的时间应是

A．新中国成立初期

B．三大改造时期

C．大跃进时期

D．“ * * ”时期

机动车辆噪声的强度一般都达80～100dB，因此对人和环境的危害很大。

折叠zhé dié