【单选题】下列选项中，开创精神分析学的是()。

【单选题】I was close to being killed the other day. A car passed me at      ____  I thought was a dangerous speed.

【判断题】分光计实验中,采用自准直法调节平行光管。

【单选题】The police stopped me the other day as I was driving home, because I was ______ the speed limit.

【判断题】The actuator speed is determined by a pressure reducing valve.

【简答题】背景： 某地新建—水库，其库容为3亿m3，土石坝坝高75m。批准项目概算中的土坝工程概算为1亿元。土坝工程施工招标工作实际完成情况如下表： 根据《水利水电土建工程施工合同条件》(gf-2000-0208)，发包人与投标人a签订了施工合同。其中第—坝段土方填筑工程合同单价中的直接费为7.5元/m3(不含碾压，下同)。列入合同文件的投标辅助资料有如下内容： 工程开工后，发包人变更了招标文件中拟定...

【多选题】不适合作为填方土料的有( )

【判断题】The actuator speed can be reduced by a restrict valve.

【多选题】What kinds of actuator are there in actuation system?

【简答题】The pressure of the hydraulic system is decided by , and the movement speed of the actuator is decided by .