【判断题】论文的关键词是能够表达论文的主题、内容,具有检索价值的名词或名词性词组,一般以3-5个为宜。( )
【单选题】The people in town were pretty dreadful.
【单选题】【C12】
C.
a such dreadful disease
D.
such dreadful a disease
【单选题】墙面抹灰一般要分层施工,其目的是 ( )
【判断题】播种繁殖前为了使种子尽快出芽要进行催芽。
【简答题】小明同学做“比较两种材料保温性能”的实验,他取①泡沫塑料和②卫生纸两种材料作保温材料,两根相同的温度计,两个相同的大玻璃烧杯,钟表和热开水,以及细线、硬纸片、剪刀。他做两个相同的硬纸外壳,装置如图(a)所示。把盛有热水的烧杯放入不同保温材料的硬纸盒中自然冷却。根据实验测得的数据绘得图(b)所示“水温与时间关系”的图像.实验过程室温基本不变,请回答: (1)为保证实验的科学性,除了取大小、厚度相同的...
【单选题】To prevent a repetition of this dreadful occurrence, we must discover the ______ element in the food that was served.
【单选题】The fact that the miners there work in dreadful attracts the public attention and contribute to making laws to protect the miners’ right .