禁止一切捕捞活动,好让江河、湖泊中的鱼长得又肥又大。[ ]
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根据句意填入适当的单词。
1. "How _______ is Wang Nan?" " She is twenty-six."
2. Mary was born on September 16th. So that day is her ________.
3. "_________ is his school trip?" "It's March 2nd."
4. May is the fifth ________ of a year.
5. ________ 1st is Children's Day(儿童节).
团注对比剂后,血液的T1值变化特点为()
A.持续的时间比较短,因此需要超快速序列采集
B.血液的T1值缩短不明显,需要权重很重的T1WI序列采集
C.对比剂流经不同的血管可造成相应血管内血液的T1值发生变化
D.随血液流动可进行多层块采集拼接,观察从近心大血管到四肢血管
E.多期相扫描可显示不同的血管