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【单选题】
钩虫病贫血的主要原因是A.
慢性失血
B.
钩虫感染引起骨髓造血功能减退
C.
铁剂吸收不良
D.
钩虫引起胃肠功能紊乱
E.
肠道吸收障碍引起叶酸缺乏
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【简答题】I’m a Chinese student studying in Canada. I have been a boarder(寄宿生)with the Carsons for more than a year and a half. The Carsons live in their own house, which has four bedrooms including the one in ...
【简答题】社会主义市场经济除了具有市场经济的一般特征外，还具有其特殊性。（ ）
【单选题】The Carsons live in their own house, which has four bedrooms including the one in the basement( 底层 ) which I live in. Judy does all the work in the house and Andrew is responsible for the work in the ...
A.
He is a brother of Andrew Carson.
B.
He is a close friend of the Carsons.
C.
He is a student of Judy Carson.
D.
He is a student who pays to live and have meals at the Carsons’ house.
【单选题】不属于酶联免疫吸附试验(ELISA)特点的是
A.
ELISA方法可检测抗原、半抗原或抗体
B.
ELISA方法可标记抗原、抗原、第一抗体等
C.
EuSA方法可分为竞争法和非竞争法
D.
ELISA方法只能对抗体进行标记
E.
ELISA方法可结合其他方法使用
【简答题】I used to live in Kobe in Japan. On my way home on the bus every evening I used to look for an old man who often played his saxophone (萨克斯管) near the river. I couldn’t hear his music because the windo...
【简答题】已知一次函数的图象经过点（1，-4）和点（2，5）。 （1）求一次函数的关系式； （2）画出函数图象。
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