【单选题】Eleven people got killed in the accident, ________ the identities haven't been available.
【判断题】混凝土运输小车不得直接在模板上运行,是为了避免对模板产生重压。
【单选题】As for Latin America generally, there’s no reason why, ____resources available, it can’t become a highly industrialized area.
【单选题】If penicillin _____________ available, many people ______________ from sickness.
A.
weren’t , would have died
B.
shouldn’t be, would die
C.
hadn’t been, would have died
【单选题】绘制设备布置图,描述错误的是( )。
C.
若有多台规格相同的设备,可以只画出一台,其余用粗实线简化画出其基础的矩形轮廓
【单选题】常见的篮球比赛是由 4 小节组成,每节 10 分钟。半场比赛休息时间不超过 ( ) 分钟 ( 2.0 分)
【简答题】结合图9.4,分析单相桥式整流电路的原理,要对电流流通途径进行分析。
【简答题】Many other new techniques are available that enable more research __________(do) in the test tube.