【单选题】The word 'candor' in the third sentence of the third paragraph probably means ______.
【单选题】古代最早煮粥的炊具是 。它开始了蒸煮这种中国传统烹调方法。
【单选题】In the third sentence of the third paragraph, the word 'employed' means______.
【判断题】革兰氏阴性细菌细胞壁中的特有成分是肽聚糖。
【单选题】The word 'afflict' in the third sentence of the first paragraph most probably means ______.
【单选题】鼎最早是煮食物的炊具,后来成为国家和权力的象征,是因为其用途转变为( )。
【判断题】肽聚糖是革兰氏阴性细菌细胞壁中的特有成分。