题目内容

Effective July st, all supply requests must be approved by a supervisor and ____in writing

A. advised
B. submitted
C. urged
D. complied

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本工程室内台阶踏步宽度不宜小于()mm，踏步高度不宜大于150mm。

A. 200
B. 250
C. 300
D. 350

What is NOT mentioned as a way of contributing to the protection of the environment？

A. Collecting cans.
B. Educating people.
C. Attending events.
D. Recycling materials.

The session was crowded with directors and managers in_____of human resources departments

A. responsibility
B. charge
C. chance
D. duty

目前，我国石油储备一期四个基地(浙江镇海、浙江舟山、青岛黄岛、辽宁大连)已基本建成。正积极推进石油储备二期基地建设
我国建立石油储备体系的主要目的是（）。①确保国家石油的不间断供给②平抑国内油价的异常波动③加快石油加工产业链的发展④改变我国能源消费的构成

A. ①②
B. ②③
C. ③④
D. ①④