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【判断题】

棉花枯萎病菌引致棉株枯萎主要病菌阻塞导管?

A.
正确
B.
错误
题目标签:阻塞枯萎病棉花
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参考答案:
参考解析:
.
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【单选题】An elm in our backyard(7)the blight (枯萎病) this summer and dropped stone dead, leafless, almost overnight. One weekend(8)was a normal-looking elm, maybe a little bare in spots but(9)alarming, and the n...

A.
There are so many new books about dying that there are now special shelves set aside for them in bookshops, along with the health-diet and home-repair paperbacks. Some of them are so(1) with detailed information and step-by-step instructions for performing the function, that you’d think this was a new sort of(2)which all of us are now required to learn. The strongest impression the casual reader gets is that proper dying has become an extraordinary,(3)an exotic experience, something only the specially trained can do.
B.
(4), you could be led to believe that we are the only(5)capable of being aware of death, and that when the rest of nature is experiencing the life cycle and dying, one generation after(6), it is a different kind of process, done automatically and trivially, or more "natural", as we say.

【单选题】肺小动脉被骨肉瘤细胞阻塞时称为()

A.
肿瘤的转移
B.
脂肪栓塞
C.
气体栓塞
D.
肿瘤细胞栓塞
E.
血栓栓塞

【单选题】以咽鼓管阻塞、感染和免疫反应为主要病因()

A.
分泌性中耳炎
B.
化脓性中耳炎
C.
分泌性内耳炎
D.
分泌性外耳炎
E.
化脓性内耳炎