分部试运是对各单项设备或系统,在投入整套试运前进行单独试运行,其目的是尽可能提前发现和消除缺陷,以保证机组整套联合试运安全顺利的进行()
参考答案:对
使用“百度知道”搜索古代人物的小传,常可以发现旁边会附有一幅画像。其实古代并没有照相机,这些图像往往是后人根据历史上的记载加以揣摩,画出来的。因此同一人物常会见到好几种差别很大的画像。这表明[ ]
①人们的意识对客观对象的反映具有主观特性 ②人们认识对象的过程就是创造对象的过程③对于没有客观根据的领域,认识的片面性总是不可避免的 ④画像是一种有一定历史根据的艺术再现
A.①②
B.③④
C.①④
D.②③
改为同义句,每空一词。
1. My dad stopped drinking two weeks ago.
My dad _______ _______ drinking two weeks ago.
2. Are you proud of being a volunteer?
Do you _______ _______ _______ being a volunteer?
3. We were surprised that the little girl could draw so well.
________ ________ ________, the little girl could draw so well.
4. Jane doesn’t go to work by bus any longer.
Jane _______ _______ _______ to work by bus.
5. Andy has decided to be a scientist when he grows up.
Andy has _______ _______ _______ to be a scientist when he grows up.