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【单选题】
关于KerleyB线的说法，下列哪不正确的（）。A.
多见于肋膈角区
B.
网格状阴影
C.
起自并垂直于胸膜面
D.
长2~3cm，宽1mm
E.
是由于小叶间隔水肿、肥厚所致
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举一反三
【单选题】Helmholtz free energy is a thermodynamic potential that measures the useful work obtainable from a closed thermodynamic system at:
A.
A constant temperature and pressure
B.
A constant temperature and volume
C.
A variable pressure and variable temperature
D.
None the above
【简答题】The work obtainable equals that expended. (定语词序调整)
【简答题】危险化学试剂一般包括___________、__________、___________、___________、_____________、____________等
【简答题】材料1：华西集团董事长吴仁宝认为，中国加入世贸后，国内国际市场形势将有较大变化，为此华西的经济要进行新的调整。华西的竞争对手主要来自“两大”，即大的国有企业和大的外贸企业、外商独资企业。加入世贸之后，国外的大公司、大企业将不断涌入中国，这些企业具有技术含量高、产品档次高、公司信誉高等优势，这对国内企业冲击很大。
材料2：红豆集团早在1993年就开始做好迎接入世的准备。目前该集团已在54个国家和地区...
【多选题】Marshall Hall's five principles (1831) for animal welfare are:
A.
An experiment should never be performed, if the necessary information could be obtained by observations. No experiment should be performed without a defined, obtainable, objective.
B.
Scientists should be well informed about the work of their predecessors and peers in order to avoid unnecessary repetition of an experiment.
C.
Justifiable experiments should be carried out with the least possible infliction of suffering (often through the use of lower, less sentient animals).
D.
Every experiment should be performed under circumstances that would provide the clearest possible results, thereby diminishing the need for repetition of experiments.
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