【名词&注释】
蕨类植物(pteridophyte)、雄配子体(male gametophyte)、雌配子体(female gametophyte)、孢子体(sporophyte)、大孢子萌发(megaspore germination)、顶端分生组织(apical meristem)
[单选题]蕨类植物的大孢子萌发(megaspore germination)产生雌配子体，小孢子萌发产生小孢子体。( )
A. 正确
B. 错误
查看答案&解析
举一反三：
[单选题]假二叉分枝是顶端分生组织(apical meristem)分成2个发育而成的。( )
A. 正确
B. 错误
[单选题]C“Old wives tales” are beliefs passed down from one generation to another, For Example, most of us remember our parents’ telling us to eat more of certain foods or not to do certain things. Is there any truth in these teachings? Some of them agree with present medical thinking, but others have not passed the test of time.
A. Did your mother ever tell you to eat your carrots because they are good for your eyes? Scientists now report that eating carrots can help prevent a serious eye disease called macular degeneration. Eating just one carrot a day can reduce the possibility of getting this disease by 40%. Garlic (蒜) is good for you, too. It can kill the type of virus that causes colds.
B. Unfortunately, not all of Mom’ s advice passed the test of medical studies, For example, generations of children have been told not to go swimming within an hour after eating. But research suggests that there is no danger in doing so. Do sweets cause tooth problems? Well, yes and no. Sticky sweets made with grains tend to cause more problems than sweets made with simple sugars.
C. Even though science can tell us that some of our traditional beliefs don’t hold water, there is still a lot of truth in the old wives’ tales. After all, much of this knowledge has been accumulated (积累) from thousands of years of experience in family health care. We should respect this body of knowledge even as we search for clear scientific support to prove it true or false.
D. 48. Which of the following is TRUE according to the test?
E. Eating garlic is good for our eyes.
F. Sticky sweets are damaging to our teeth.
G. Swimming after a meal is dangerous.
H. Carrots prevent people from catching colds.
[单选题]It is reported that the police will soon ____ the case of two missing children.
A. look upon
B. look after
C. look into
D. look out
[单选题]What is the researchers' understanding of tbe New Zealand study results?
A. Poorly motivated 26-year-olds watch more TV.
B. Habits of TV watching reduce learning interest
C. TV watching leads to lower education levels of the 15-year-olds.
D. The connection betweenTV and education levels is difficult to explain
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