单选题
发布日期:2021-06-29
had just been thinking about
have just been thinking about
are just thinking about
had just thought about
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乳腺癌发生的常见部位是()
下列铁杆中哪种铁杆的杆身最长()。
汽油机化油器式燃料供给系由哪几部分组成?
女员工仪容仪表应端庄大方,(),不得浓妆艳抹,不得使用浓烈香水,不得在客户面前化装。
中破碎机的电流表瞬时高的主要原因一般是过铁引起的。
惯性轮与电机轴摩擦作用良好,手动检查不抱死;转辙机转换终了时,接点()。
一个完整的服务计划应该具备()和结构性特征。
采用模压法或机压法制备的是()
电话访问的缺点不包括( )
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性:
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In this experiment, the students’ studies are stopped several times during the l...
In this experiment, the students’ studies are stopped several times during the l...
In this experiment, the students’ studies are stopped several times during the l...
The senior professor told his students to ______ on their studies.
____
“Must we start the experiment now?” “No, you ().”
“Must we start the experiment now?” “No, you ().”
Many studies show that ______.
What do most studies show?
It was _____ back home after the experiment.