骨在脱钙时出现的实验现象是[ ] A.冒烟 B.有烧焦的蛋白质气味 C.有气泡产

题型:选择题

问题:

骨在脱钙时出现的实验现象是[ ]

A.冒烟    

B.有烧焦的蛋白质气味  

C.有气泡产生    

D.骨先是变黑,后变成灰白色

考点:人体的运动系统
题型:选择题

阅读理解。

  In many English homes, people eat four meals (饭) a day breakfast, lunch,

tea and dinner. People have breakfast at any time from seven to nine in the

morning. They eat eggs, bread and drink milk at breakfast.

  Lunch comes at one o'clock. Afternoon tea is from four to five in the

afternoon, and dinner is about half past seven. First they have soup, then they

have meat or fish with vegetables. After that, they eat some other things, like

bananas, apples or oranges. But not all English people like that. Some of them

have their dinner in the middle of day. Their meals are breakfast, dinner, tea and

all these meals are very simple (简单).

1. Many English people have_____ meals a day.

A. to  

B. three  

C. four  

D. five

2. People may(也许) have _____ for their breakfast.

A tea and eggs  

B. eggs , bread and milk  

C. tea, coffee  

D. bread, tea and eggs

3. People have lunch at _____.

A. anytime  

B. nine  

C. five  

D. one

4. People don't have _____ for dinner.

A. porridge  

B. bananas and apples  

C. soup and meat  

D. meat and fish

题型:选择题

学习古代诗歌,我们徜徉在历代诗歌长廊中,犹如欣赏一幅幅优美深邃的历史画卷;仰视历史天空灿烂的群星,我们满怀崇敬之意。欣赏诗歌,既是解读人品,也是体验真情。请以古代诗歌为内容。仿照例句续写两个句子,构成排比。

  屈原在《离骚》楚韵的悲歌中,怀沙沉江,用生命诠释了爱国的情怀;

________________________________________________________;

________________________________________________________。

题型:选择题

执行下列语句序列后,
ofstream outfile("DATA.DATA")
if(…)cout<<"OK";else cout<<"FAIL";如果文件打开成功显示OK,否则就显示FAIL。由此可知,…处的表达式应是( )。

A.outfile.fail()或outfile

B.outfile.fail()或! outfile

C.outfile.good()或outfile

D.outfile.goodl()或! outfile

题型:选择题

风险是指某一特定危险情况发生的可能性和()的组合

题型:选择题

诱发电位

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