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【单选题】
肿瘤的间质主要指A.
血管
B.
淋巴管
C.
纤维结缔组织
D.
血管及结缔组织
E.
网状支架
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反馈参考答案：
举一反三
【简答题】A．They had some problem with their hearts. B．One of them had some problem with her heart. C．They had some problem breathing. D．One of them had some problem breathing.
【单选题】The Massachusetts study showed that no one with a cholesterol level below 150 had ever had a heart attack.
A.
Y
B.
N
C.
NG
【多选题】革兰氏染色法的原理是（）
A.
阴性菌细胞壁受酒精作用通透性增高
B.
阳性菌的等电点比阴性菌高
C.
阴性菌缺乏核糖核酸镁盐
D.
阳性菌含丰富的蜡质，不易被酒精脱色
E.
阳性菌细胞壁肽聚糖层厚受酒精影响脱水阻止结晶紫-碘复合物溶出
【简答题】革兰氏染色法的原理是什么?
【简答题】革兰氏染色的目的、原理是什么?试述细菌革兰氏染色法步骤。
【简答题】简述革兰染色法的原理、步骤、结果及临床意义。
【单选题】He had a great idea that one should whatever one had begun. [ ]
A.
insist on
B.
stick to
C.
stick out
D.
stick with
【单选题】He said that he had waited for ________.
A.
one and a half hours
B.
one and half hour
C.
one and the half hour
D.
one and half an hour
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