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【多选题】
工程咨询公开招标程序采用公开招标方式的招标文件包括（）。A.
招标公告
B.
投标人须知
C.
委托服务范围
D.
拟签订的合同条款
E.
咨询预审文件
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【简答题】One of _________(amazing) genetic applications in medicine is gene therapy.
【简答题】将“Why then is gene cloning still used?”的原因的英文抄写,并翻译,上传至自主学习平台中。
【单选题】For revolution speed regulating, a frequency convertor can ______.
A.
give stepless speed regulation
B.
give step speed regulation
C.
give direction control
D.
give direction control and step speed regulation
【判断题】Because of the electric motor's torque and high RPM abilities, most BEVs use a single speed, 9.7:1 ratio gearbox ( the motor spins 9.7x for every 1 tire revolution ), so the vehicles never "shift gear...
A.
正确
B.
错误
【简答题】所谓的线性关系,就指的是 与输入大小成线性比例关系,波形按定值比例在大小上 或 。
【简答题】将“Why then is gene cloning still used?”的英文抄写,并翻译过来, 上传自主学习平台。
【单选题】What is Gene Drive?
A.
A genetic experiment on sheep.
B.
A chunk of DNA to permanently change an entire species incredibly fast.
C.
A genetic way to eliminate the brown fruit flies.
D.
A new method to make brown fruit flies produce nothing.
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