在为日常生活使用的器具设计中，居于首要位置的应该是（）A、功能效用 B、工艺技术

I can hardly hear you because it’s too noisy here. Please speak _______ .                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            

A．faster

B．more slowly

C．quickly

D．louder

The teacher had the students __________ all the words they didn’t know.

A．looked up

B．looking in

C．look up

D．look at

简述运输定价的原则。

本质安全管理体系文件分为3个层次，即（）。

A.管理手册

B.程序文件

C.操作规程和其他支持性文件

D.法律法规

以下选项中，关于纳税信用级别得分区间表述正确的有（）。

A.A级纳税信用为年度评价指标得分90分以上的

B.B级纳税信用为年度评价指标得分70分以上不满90分的

C.C级纳税信用为年度评价指标得分40分以上不满70分的

D.D级纳税信用为年度评价指标得分不满40分或者直接判级确定的

E.A级纳税信用为年度评价指标得分100分