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【简答题】Stroke is a very rare________ in people in their thirties. ( occurrence, to occur )
【单选题】Very _______ exercise can increase the risk of stroke.
A.
victorious
B.
rigorous
C.
virtuous
D.
vigorous
【单选题】One of the differences between a two-stroke engine and a four-stroke engine is,（）
A.
a two-stroke engine can’t work without cylinders
B.
a two-stroke engine can’t work without pistons
C.
a two-stroke engine can’t work without crankshafts
D.
a two-stroke engine can’t work without a blower
【单选题】_________and stroke can occur together, or in very close proximity.
A.
Kidney failure
B.
Infection
C.
Heart arrhythmias
D.
Seizure
【单选题】One of the differences between a two-stroke engine and a four-stroke engine is,（）
A.
a two-stroke engine works without exhaust operation
B.
a two-stroke engine works without compression stroke
C.
a two-stroke engine works without expansion stroke
D.
a two-stroke engine works without suction operation
【单选题】(2015·新课标全国II卷文综·33)由表1可以推知,19世纪70年代到20世纪初( ) 表1 英、美、法、德工业生产总和在世界工业生产中所占比例表 年代 1870 1896~1900 1913 比例 78% 74% 72%
A.
欧美发达国家已经开始盛极而衰
B.
世界各地的工业化有所发展
C.
世界各国工业发展差距明显缩小
D.
世界经济结构发生重大变化
【单选题】Which stroke is just behind the intake stroke?
A.
Exhaust stroke
B.
Compression stroke
C.
Power stroke
D.
Suction stroke
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