依据《中华人民共和国民法典》规定，当事人约定在将来一定期限内订立合同的认购书、订购书、预订书等，构成（）。当事人一方不履行预约合同约定的订立合同义务的，对方（）请求其承担预约合同的违约责任。

“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.。

2024-01-13 竞赛及其他题库

Legal vocabulary mainly comes from French.。

2024-01-13 竞赛及其他题库

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.。

2024-01-13 竞赛及其他题库

Scientific English develops from abstract to concrete， from empirical to rational， and from dynamic to static.。

2024-01-13 竞赛及其他题库

The language of science and technology includes texts of a large variety of registers.。

2024-01-13 竞赛及其他题库

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.。

2024-01-13 竞赛及其他题库

体液免疫，即以（）产生抗体来达到保护目的的免疫机制

2024-01-13 竞赛及其他题库

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。

2024-01-13 竞赛及其他题库

盲肠的主要功能是

2024-01-13 竞赛及其他题库