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【单选题】
减小混凝土的措施是A.
加大水泥用量，提高养护时的温度和湿度
B.
加大骨料用量，提高养护时的温度，降低养护时的湿度
C.
延迟加载龄期，降低养护时的温度和湿度
D.
减小水泥用量，提高养护时的温度和湿度
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【简答题】酶的催化特点及影响酶催化的因素?
【单选题】—In early autumn Steve applied for admission to college.He wanted to go ________ but to Cornell University. —Oh, why not Harvard?
A.
anywhere
B.
nowhere
C.
everywhere
D.
somewhere
【简答题】Wheredid Max want to go? He wanted to go to the .
【单选题】Today, most countries in the world have cs. Many countries have built cs near the coast, and parallel【67】the coast. Even in the twentieth century, goods can be moved more cheaply by boat than ...
A.
off
B.
with
C.
to
D.
by
【简答题】（ ）是指不以当事人的主观意志为转移，能够引起一定的劳动法律后果的客观现象。
【简答题】阅读理解。 Mr. Jenkins lived in the country, and one day he wanted to go to an office in the city. He found the address, got into his car and drove to the city. He drove straight to the office without any ...
【单选题】Today, most countries in the world have cs. Many countries have built cs near the coast, and parallel 【26】______ the coast. Even in the twentieth century, goods can be moved more cheaply by bo...
A.
off
B.
with
C.
to
D.
by
【单选题】下列关于供给价格弹性和供给价格弹性系数的理解中不正确的是( )。
A.
供给价格弹性是价格变动对供给量变动的反应程度
B.
供给价格弹性系数是供给量变动率与价格变动率的比值
C.
供给价格弹性系数的数值一般都为正值
D.
一条供给曲线上不同点的供给价格弹性系数大小并不一定相同
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