【判断题】177如果等高线上设有高程注记,用示坡线表示,示波线从内圈指向外圈,说明由内向外为下坡,故为山头或山丘,反之,为洼地或盆地。该表述( )
【简答题】某商场所卖的“蛋奶乳精”被怀疑为假冒伪劣婴儿奶粉,某生物研究性学习小组的同学想把调查该产品的合格情况作为研究性课题。假如你是课题组成员,请你尝试完成鉴定实验。 (1)举报人称“该蛋奶乳精不含奶,就是淀粉加香精混合而成”,鉴定是否含淀粉,具体操作方法是:_____________________________。 (2)鉴定该待测婴儿奶粉蛋白质的含量是否符合质量标准。 实验原理:__________...
【单选题】核心价值观是一个民族赖以维系的精神纽带,是一个国家共同的()基础。
【单选题】本实验在课本中,用NaOH溶液标定HAc溶液时用()作为指示剂
【单选题】There are days when we feel especially upset. When you are ________ such a difficult period, it often helps to talk to someone. [ ]
【单选题】听力原文:W: Why is Bob so tired and upset? M: He's been studying day and night for his final exams. I warned him many times to prepare earlier, but he wouldn't listen. Q: What does the man mean? (15)
A.
Bob is too tired to study any more.
B.
He told Bob not to study late at night.
C.
He had often advised Bob to study.
D.
Bob didn't hear the alarm.
【单选题】中国古代有人说:“君者,舟也;庶人者,水也。水则载舟,水则覆舟。”最早说这话的是:
【单选题】---Bob looks upset. What has happened to him? ---Perhaps his failure to the exam___ his low spirits.
【判断题】核心价值观是一个民族赖以维系的精神纽带,是一个国家共同的思想道德基础