搜题请搜索小程序“爱下问搜题”
问题 单项选择题

在糖尿病的饮食治疗中，成人休息状态下保持理想体重应给予的热量是（）

A.大于167kJ/kg

B.125.5~146kJ/kg

C.146~167kJ/kg

D.105~125.5kJ/kg

E.125.5~167kJ/kg

答案

参考答案：D

阅读理解

I’m Tony. My best friends are Frank and Cindy. We often do many things together. Frank lives next to my home and we are in the same class. He is thirteen years old and tall and of medium build. He has curly hair and blue eyes. He’s good-looking and very clever. He’s good at math and often helps me with my homework. He likes wearing black pants and yellow T-shirts.

Cindy doesn’t go to my school. She’s eleven years old. She is thin and of medium height. She has curly blonde hair and her eyes are brown. She is good-looking, too, but a little bit shy. She is good at playing the guitar. Her favorite subject at school is music. She often teaches Frank and me to play the guitar after class.

The three of us have great fun together, and we help each other and sometimes play video games at my house.

小题1:What things do the three children do together? They ___________.

A．play baseball

B．play video games

C．play the guitar

D．both B & C小题2:_____________ eyes are blue.

A．Frank’s

B．Cindy’s

C．My

D．Tony’s小题3:_______________ good at math.

A．Frank is

B．Cindy is

C．I am

D．Tony is小题4:________________ is good-looking, but a little bit shy.

A．Frank

B．Cindy

C．Tony

D．My friend小题5:Where do they play video games?   _________________.

A．at school

B．at Frank’s house

C．at Cindy’s house

D．at Tony’s house
查看答案
填空题

用如图装置进行镁条在空气中燃烧的实验．在密闭性良好，操作规范的条件下，燃烧停止、冷却后打开止水夹、发现进入集气瓶中水的体积约占集气瓶体积的70%．请回答：

（1）左图A仪器的名称是______；冷却后打开止水夹，水能进入集气瓶的原因______． 

（2）如果镁条只和空气中的氧气反应，则进入集气瓶中水的体积最多不超过其容积的______%．现进入集气瓶中水的体积约为其容积的70%，可能的原因______．
查看答案