【名词&注释】
布朗运动(brownian motion)、表面积(surface area)、无规律(irregularity)、电中性(electroneutrality)、非电解质(nonelectrolyte)
[单选题]下列关于溶液和胶体的叙述,正确的是
A. 溶液是电中性的,胶体是带电的
B. 通电时,溶液中的溶质粒子分别向两极移动,胶体中的分散质粒子向某一极移动
C. 溶液中溶质粒子的运动有规律,胶体中分散质粒子的运动无规律,即布朗运动
D. 一束光线分别通过溶液和胶体时,后者会出现明显的光带,前者则没有
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学习资料:
[单选题]
B. Also
C. But
D. Thus
A. YetB. Also
B. But
C. Thus
[单选题]What has the woman decided to do on Sunday aftermoon?
A. To attend a wedding+
B. To visit an exhibition.
C. To meet a friend.
[单选题]Can you surprised by the ending of the film?--------NO,I____the book, so I already knew the story
A. was reading
B. had read
C. am reading
D. have read
[单选题]DMany people to newspaper and magazines to express their opinions. Letters to the editor must carry the writer full name, address and telephone number, although the information is not necessary for publication. This requirement to provide personal particulars is a clear indication that writers are held responsible for what they say. When a writer wants his voice heard. He needs to claim ownership of his voice. Responsibility is the name of the game.
A. “People today prefer living together to putting their signatures on a marriage certificate because they refuse to accept responsibility for the relationship,” said social worker Ken Yip, “and this is what is causing a lot of family problems.” When we sign a paper, for example, a business contract or a bank document, the signature is symbol of consent, an agreement to take the matter seriously. Most governments and many organizations will not process writer’s complaints if they do not bear the writer’s signature. The absence of a signature, they explain, tells us that the writer cannot be too serious and therefore does not deserve a reply.
B. There are people who wish to remain anonymous(匿名的)for various reasons. Multi-billionaire Mr. King donates generously to charity several times a year. He gives simply because he wants to help but not for the publicity his donations may bring, and he does not want his good deeds to make news. In other cases, people insist on anonymity because they are afraid of the consequences of revealing their identity. Crime witnesses may be willing to assist the police, but most are unwilling to give their names when reporting a crime.
C. Name or no name? The answer is very personal and lies in how much we want to get involved. We all have a name, it is a matter if responsibility to it when we make a statement, a claim or an accusation. We all want to honour our own name, and it is only by stamping our expression of an opinion with our own name that we honour what we say.
D. 68. What does the writer mean by saying “Responsibility is the name of the game”?
E. Writers need to provide their personal information in the game.
F. Publication must bear the writer’s full name, address and phone number.
G. Writers should be responsible for their names.
H. Names are required to indicate writers’ responsibility for what they say.
[单选题]Thousands of people to watch yesterday ‘s match against Ireland
A. turned on
B. turned in
C. turned around
D. turned out
[单选题]伴胞的活动是与筛管分子的运输功能有着密切的关系。( )
A. 正确
B. 错误
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