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【单选题】
普通的钢筋混凝土结构进行正常使用极限状态验算时,下述关于荷载、材料强度以及荷载组合原则的描述中正确的是( )。A.
荷载和材料强度均采用设计值，荷载组合采用标准组合
B.
荷载和材料强度均采用标准值，荷载组合采用标准组合
C.
荷载和材料强度均采用设计值，荷载组合采用准永久组合
D.
荷载和材料强度均采用标准值，荷载组合采用准永久组合
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举一反三
【单选题】She worked hard at her task before she felt sure that the results would ______ her long effort.
A.
justify
B.
testify
C.
rectify
D.
verify
【单选题】She worked that hard just for wanting to _________ the most excellent student.
A.
outstrip
B.
overrun
C.
outcome
D.
outlook
【简答题】The story is about a young student．She worked very hard at her lessons．She worked so hard that she became ill．She couldn't go to sleep at night．But when she got up the next morning, she felt very tire...
【单选题】______, she failed again in the test and felt very depressed.
A.
As she worked hard
B.
Hard as she worked
C.
Since she worked hard
D.
Hard since she worked
【简答题】阅读理解。 The story is about a young student. She worked very hard at her lessons. She worked so hard that she became ill. She couldn't go to sleep at night. But when she got up the next morning, she felt...
【单选题】下列有关脂肪酸氧化的叙述中哪项是错误的()
A.
首先脂肪酸活化，生成脂酰CoA
B.
经肉毒碱进入线粒体内
C.
在β-碳上进行脱氧、加水、再脱氧，并在α-β碳之间断裂
D.
其产物只有脂酰CoA
E.
肉毒碱脂酰转移酶Ⅰ是脂酸β氧化的限速酶
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