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【单选题】
与II型反应无关的成分是A.
NK细胞
B.
吞噬细胞
C.
补体
D.
肥大细胞
E.
中性粒细胞
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举一反三
【简答题】工程图样要求是:完整、清晰、简便地表达物体的结构、形状,为此制图标准中规定了哪些相应的表达方法?
【单选题】Why cholesterol levels in people are higher in winters?
A.
Because there is not enough vitamin D in the body.
B.
Because people don't exercise enough in winters.
C.
Because the temperature is lower in winters.
D.
Because people do not receive enough sunshine during winters.
【简答题】中国直肠癌流行病学特点_________、_________ 、 _________。
【简答题】为什么说十进制和二进制之间的转换是各种数制之间转换的关键?你对十进制转换成二进制的方法熟悉吗?
【简答题】进制之间的转换。 十进制转换成二进制、八进制、十六进制。 二进制、八进制、十六进制转换成十进制。
【多选题】中国人直肠癌的流行病学特点有:
A.
占消化道癌的第二位
B.
直肠癌比结肠癌发生率高，约1.5:1
C.
绝大多数癌肿可在直肠指检时触及
D.
青年人(<30岁)直肠癌比例高，约10％～15％
【单选题】In some countries bathing is expensive because ______.
A.
there is not enough water
B.
electricity and wood are expensive
C.
there are not many baths
D.
bath-houses are rare
【单选题】According to paragraph 6, why is water a problem?
A.
There is not enough water available in the world.
B.
Plants and animals are using the water that humans require.
C.
Distribution of water where it is needed can be difficult.
D.
Most of the water is too old to be used safely.
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