单选题
Engine operating conditions may be indicated by the color of the exhaust smoke.Black smoke could indicate（）
发布日期：2021-03-22
an insufficient speed droop setting
an overloaded engine
clogged drain holes in the oil control rings
complete combustion
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此试题出现在
900000000○9亿，在○里填上“＞”，“<”或“=”，结果正确的是()
____.
下列能降低西布曲明效果的药物是（）。
主要与正气强弱有关的是：（）
渠道纵横断面设计
支配背阔肌的神经（）
温度三基点指的是植物生长的（）
男性，67岁，患阻塞性肺气肿12年余，近日着凉后，咳嗽、咳黄痰、气喘加剧，伴发热，上腹胀痛，食欲减退，肝大伴压痛，下肢轻度水肿，心电图偶见房性期前收缩治疗中最重要的是（）
膀胱湿热证多见（ ）。
有关前室间沟与后室间沟的相关描述，血流哪一项是错误的?
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