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【简答题】
在免疫前后1,不要用____________抑制免疫应答的药物;对弱毒疫苗特别是弱菌疫苗,在免疫前后1,不要使用______药物;口服使用弱毒疫苗前后2天,不要使用______,避免影响免疫效果。
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【单选题】The plant called the scarlet gilia can have either red or white flowers. It had long been thought that hummingbirds, which forage by day, pollinate its red flowers and that hawk-moths, which forage at...
A.
Uncovered scarlet gilia flowers, whether red or white, became pollinated at approximately equal rates.
B.
Some red flowers of the scarlet gilia that remained uncovered at all times never became pollinated.
C.
White flowers of the scarlet gilia that were covered at night became pollinated with greater frequency than white flowers of the scarlet gilia that were left uncovered.
D.
Scarlet gilia plants with red flowers covered by day and scarlet gilia plants with white flowers covered at night remained unpollinated.
E.
In late August, when most of the hummingbirds had migrated but hawkmoths were still plentiful, red scarlet gilia plants produced fruit more frequently than they had earlier in the season.
【单选题】、2015U2-63男,68岁反复咳嗽、咳痰15年, 加重伴发热3天。吸烟史40年, 1包/天。查体: T38.8°C,口唇发绀。桶状胸,双肺可闻及哮鸣音和湿啰音。血WBC10.3x109/L,N 0.85。 该患者最可能的诊断是
A.
支气管肺癌
B.
肺血栓栓塞
C.
慢性阻塞性肺疾病
D.
支气管扩张
E.
支气管哮喘
【判断题】The loss of those tourists is being felt most strongly in Asian countries.
A.
正确
B.
错误
【单选题】The tourists felt tired after .
A.
a 12-hour flight
B.
a 12-hours flight
C.
a 12-hours’ flight
D.
a 12-hour’s flight
【简答题】简述使用紫外灯的注意事项。
【单选题】my brother and i like football.__play it together once a week.
A.
I
B.
they
C.
We
D.
you
【简答题】单词拼写。 根据首字母或中文提示写出正确的英文单词或短语。 1. We saw a_______ farms which were built more than a hundred years ago. 2. Now we're leaving the business district and _______ (接近) the harbour. 3. After a long-distance...
【简答题】Either the plant or
the flowers will lose ____________ freshness.A. his B. its C. theirs D. their
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