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【单选题】
火箭免疫电泳的火箭峰呈圆形是因为A.
琼脂凝胶的电渗过大
B.
电泳时间未达终点
C.
抗原为IgG类蛋白质
D.
加样速度慢
E.
抗原含量过低
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【单选题】The floods are _______ most of the villages in the sea.
A.
threatening
B.
applying
C.
advertising
D.
judging
【简答题】The floods are ____most of the villages in the area.
【简答题】Fill in each of the blanks in the following sentences with a word or phrase chosen from the following words. Change the forms where necessary. hesitate; humble; influence; judgment; threaten; act...
【简答题】Complete the sentences with the vocabulary given below. ( 请将下列词语的 代号,代号,记得是代号, 不是单词填入对应句子当中) 1 humble, 2 judgement, 3 hesitates, 4 influence,5 threatening, 6 origin 7 leaving...to, 8 acting on, ...
【单选题】The floods are ________ most of the villages in the area.
A.
threatening
B.
resenting
C.
weakening
【简答题】The floods are ______ most of the villages in the area．洪水正威胁着这个地区的大多数村庄。
【简答题】2014 年墨西哥的一座深海油井起火,原油在深海井口处泄露,造成了生态污染。为堵住漏油井口,石油公司派出了水下机器人潜入深海作业。机器人下潜到深海漏油井口处时,海水的压强为1.5×10 7 Pa,漏油井口处海水的深度为 ______ m .如果漏油井口的面积为0.2m 2 ,则海水在这块面积上产生的压力为 ______ N .(取ρ 海水 =1×10 3 kg/m 3 ,g=10N/kg)
【简答题】The floods are ________________ most of the villagers in the area. (threaten)
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