学生伤害事故的责任，应当根据相关当事人的行为与（）之间的因果关系依法确定。

现浇混凝土挡土墙，泵送混凝土时，宜设几人以上人员牵引布料杆？

Being a ________(high) motivated lauguage learner, he takes every opportunity to improve his English

水样的冷藏温度一般是（）

Apart from her devotion to her work ，Elizabeth was also loved for her___(warm)and humor.

两个同方向、同频率、同相位的简谐振动，振幅均为A.则它们合振动的振幅为A'=____________.

环境标准体系是指（）的总和。

This advertisement is a___(type)example of their marketing strategy.

（）是指能够记录只是、信息的各种物质实体，是人类传播和交流知识信息的媒介。

The present crisis bears some ________(similar) to the oil erisis of the 1970s