阅读匹配。 Someone says, "1_______" But I th

题型:阅读理解

问题:

阅读匹配。
     Someone says, "1_______" But I think time is even more important than money. Why? Because when
money is spent, we can get it back. However, when time is gone, it'll never return. 2_______ 
     It goes without saying that the time is usually limited (有限的). Even a second is very important.
3_______ 
     But it is a pity that there are a lot of people who do not know the importance of the time. They spend their
limited time smoking, drinking and playing. 4_______
     In a word, we should save time. 5_______ Remember we have no time to lose. 
A. That is why we must not waste time.
B. Time is money.
C. They don't know that wasting time means wasting part of their own lives,
D. We should make full use of our time to do something useful.
E. We should make use of our time to do everything.
F. We shouldn't leave today's work for tomorrow.
考点:人生感悟类阅读
题型:阅读理解

为了探究实验室的一种黑色粉末和一瓶标签破损的无色溶液(见下图)可能是什么物质,大胆猜想并设计实验进行验证。

当把黑色粉末与无色溶液混合时,即产生了气泡。

初中化学实验室常见的黑色粉末有氧化铜、二氧化锰、四氧化三铁、铁粉、碳粉、银粉等。

黑色粉末是       ,无色溶液是        。(写一种假设)

向盛有少许黑色粉末的试管中加入适量试剂瓶中的无色溶液,再收集一试管气体,检验气体(写出操作方法)                                                         。此气体是         ,原假设        

题型:阅读理解

霍乱病人常见的临床表现是

A.先吐后泻
B.先泻后吐
C.吐泻同时发生
D.只泻不吐
E.只吐不泻

题型:阅读理解

简述我国回族饮食文化的特点。

题型:阅读理解

关于开胸手术肺门反射的叙述,正确的说法是()

A.迷走神经参与

B.牵拉解剖肺门部位可诱发

C.刺激后心动过速

D.可引起早搏

E.局麻药封闭可缓解

题型:阅读理解

1#反渗透系统保安过滤器的滤芯精度为(),滤芯数量为()。

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