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【判断题】
腔隙性脑梗死最常见的病因为高血压病?A.
正确
B.
错误
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举一反三
【简答题】A little boy asked his mother, “Why are you crying?” “Because I’m a woman,” she told him. “I don’t understand,” he said. His mum just hugged him and said, “You 36 will.” Later the little boy asked his...
【简答题】直接引语变间接引语 He said, “I like this park.” He asked, “Are you leaving for Beijing today?” “where is the body?” asked the policeman. “Do you like math or English?” she asked. “Do you like math or English?”...
【单选题】Choose the best definition of the word in bold type in the following sentence: “‘No meat?’ he asked. . . . Annemarie gave him a withering look. ‘You know we have no meat,’ she said insolently. ‘Your a...
A.
extremely innocently
B.
extremely rudely and lacking repsect
C.
very humourously
D.
extremely angrily
【单选题】植物叶子呈现的颜色是叶子各种色素的综合表现，主要包含两大类，叶绿素和类胡萝卜素（包含叶黄素和胡萝卜素）。一般来说高等植物的正常叶子的叶绿素和类胡萝卜素分子比例为_____，其中叶黄素和胡萝卜素的分子比为
A.
1:3 ， 1:2
B.
3:1 ， 2:1
C.
2:1 ， 3:1
D.
1:2 ， 1:3
【简答题】在珠光体型组织中,力学性能最好的是( ) ,力学性能较差的是( )。
【单选题】(2013全国联赛,30)植物叶子呈现的颜色是叶子各种色素的综合表现,主要包含两大类,叶绿素和类胡萝卜素(包含叶黄素和胡萝卜素)。一般来说高等植物的正常叶子的叶绿素和类胡萝卜素分子比例为一 ,其中叶黄素和胡萝卜素的分子比为:
A.
1: 3, 1: 2
B.
3:1,2: 1
C.
2: l,3: 1
D.
1: 2, 1: 3
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