The stability of a vessel is normally the greatest when all fuel and water tanks are full
A. center of gravity is lowered
B. center of buoyancy is lowered
C. reserve buoyancy is unchanged
D. hull freeboard is increased
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5月龄公猪,因怀疑患巴氏杆菌性肺炎,用头孢肌注3天,疗效欠佳,经实验室诊断为支原体肺炎混合感染巴氏杆菌,进一步治疗应加用的药物是()
A. 庆大霉素
B. 乙酰甲喹
C. 氟苯尼考
D. 泰乐菌素
E. 磺胺对甲氧嘧啶
香港电影体现了“海派”文化的特点。()
参考答案:错误
独白是代表作者或剧中人物对剧情进行简要介绍或评述的语言。()
参考答案:错误