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【判断题】
晶粒度越大,晶粒尺寸就越小。
A.
正确
B.
错误
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参考答案:
举一反三
【判断题】酶的抑制作用是使酶活性下降甚至丧失,酶变性作用也是使酶的生物学活性破坏。因
A.
正确
B.
错误
【单选题】听力原文: More than 100,000 miners, railway workers and London bus drivers staged a one-day strike yesterday, creating chaos for British travelers on the worst day of industrial unrest for years. The firs...
A.
employers.
B.
commuters.
C.
police.
D.
tourists.
【单选题】He is ____ about estimates that some people may pay more than $ 100 000 to rent his house annually.
A.
convinced
B.
skeptical
C.
suspicious
D.
critical
【单选题】Among all cancers, lung cancer is the biggest killer: more than 100,000 Americans die of the disease each year. Giving up smoking is one way to reduce the risk, but another answer may lie in the kitch...
A.
Right
B.
Wrong
C.
Not mentioned
【判断题】服务可以包括银行业务、酒店服务、电子通信、汽车保养等( )。
A.
正确
B.
错误
【单选题】He is ______about estimates that some people may pay more than s 100, 000 to rent his house annually.
A.
convinced
B.
skeptical
C.
suspicious
D.
critical
【单选题】动物体内存在的正常菌群所具有的作用不包括()。
A.
合成维生素
B.
参与免疫
C.
抑制外来微生物的拮抗作用
D.
治疗疾病
【简答题】age boys, regardless of race, are more likely to die from gunshot wounds than from all natural causes combined. By the time the average American child leaves primary school, he or she will witness...
【单选题】听力原文: More than 100,000 miners, railway workers and London bus drivers staged a one-day strike yesterday, creating chaos for British travelers on the worst day of industrial unrest for years. The firs...
A.
employers
B.
commuters
C.
bus drivers
D.
tourists
【单选题】变速器各轴颈及轴承的配合间隙如超过 ( ) 可换用新件。
A.
、原厂配合
B.
、许用配合
C.
、许用尺寸
D.
、使用极限
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