陶器的特征和素描用线特点是（ ）。
素描的明暗关系中的背光部分不包括()。
（ ）位于亮部与暗部的交界处，它是暗面中最黑暗的层次。
（ ）是各种透视中视觉冲击力最强的一种，一般用于表现超高层建筑、俯瞰图或仰视图。
One story always has only one theme.（ )
Besides the chronological order, we can use other ways to describe the development of the event. ( )
In most cases, using metaphors in the writing will make the language difficult to comprehend（）
In comparison and contrast writing, words such as “whereas,” “while,” and “however” are ideal for forming a comparison. ( )
At the end of a speech, you can summarize the main points and call for actions. ( )
To introduce a problem in the problem-solution pattern paragraph, we can only use true life story. ( )
The concluding paragraph is not a necessary part of a research report. ( )
Previewing is a strategy in which readers think about what they are going to read based on clues from the reading.（)
Signal words may be found anywhere in a paragraph to show relations between sentence parts, or even between paragraphs. ( )
Marketing strategies only includes online marketing strategies. ( )
In order to convince the audience why we take an activity to keep fit, we had better explain the reason why we choose it, how to cultivate it and the influence it has on us. ( )