2023-05-19
以下哪种不属于合成洗涤剂？
A.洗衣粉
B.洗衣液
C.洗洁精
D.肥皂
A
“You-Attitude” is a very important principle in business communication， that is， we should think ourselves back into the shoes of others so as to cooperate sincerely.。
2024-01-13 竞赛及其他题库
Mixed use of simple， compound， complex and compound-complex sentences， can make business English vivid and readable.。
Legal vocabulary mainly comes from French.。
When people invented something， they must also create a word to represent it in language， so scientific words occurred the earliest in the register of science and technology.。
Scientific English develops from abstract to concrete， from empirical to rational， and from dynamic to static.。
The language of science and technology includes texts of a large variety of registers.。
For the style of science and technology， in terms of mode， it includes texts of all registers concerned with the natural science and social science， such as physics， engineering， medicine， agriculture， linguistics， psychology， computer， etc.。
体液免疫，即以（）产生抗体来达到保护目的的免疫机制
昆虫足的类型多样，蝗虫的后足为 跳跃足 ，螳螂的前足为 捕捉足 ，蜜蜂的后足为 携粉足。
盲肠的主要功能是
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