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【多选题】
关于数组val a = Array(1,2,3)下列说法正确的是?
A.
val b = a.map(_*2) // b 等于 Array(2,4,6)
B.
val b = for(elem
C.
val b = 2 * a // b 等于 Array(2,4,6)
D.
val b = for(elem
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【判断题】The open access problem is nonexistent in timber production mostly
A.
正确
B.
错误
【简答题】His contributions to charity were generous. His ___ was appreciated by those he helped.
【单选题】Varieties have been bred which show both improved timber production and a prolongation of the flowering period to increase nectar yields for bee-keepers.
A.
resistance
B.
development
C.
supplement
D.
production
【判断题】Radical changes of timber production took place during 19th century.
A.
正确
B.
错误
【判断题】动物表情的塑造可以使画面更丰富,在幼儿园的教学使用可以放在道具制作中,让动物更加具有特殊的表情,便于故事的生动性。
A.
正确
B.
错误
【简答题】婴幼儿服用四环素易致牙齿黄染,是由于四环素易 ,故 等人禁用。
【单选题】患者男性,30岁。因外出春游后出现咳嗽、咳痰伴喘息1天人院。体检:体温36.8°C,脉搏90次/分,呼吸28次/分,血压120/80mmHg,喘息貌。在肺部可闻及广泛哮鸣音。该患者最可能的诊断是
A.
肺炎
B.
支气管扩张
C.
支气管哮喘
D.
肺心病
E.
心功能不全
【单选题】he newly-discovered star was named _____ a Chinese astronomer ________his contributions to astronomy.
A.
for; in favor of
B.
after; in honor of
C.
by; in memory of
D.
as; in praise of
【简答题】The first phase of timber production is _______________.A. Purchasing & management B. Tree marking C. Felling D. Delimbing , bucking, bunching
【单选题】The newly-discovered star was named _____a Chinese astronomer _____ honor of his contributions to astronomy.
A.
for; in
B.
after; for
C.
as; in
D.
after; in
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