【多选题】合同当事人约定合同的订立必须采用一定形式的目的在于( )
【单选题】How many peole will be going on this holiday?
【简答题】光电断续器与 都是用来检测物体的靠近、通过等状态的光电传感器。
【单选题】Synthesis of fatty acids occurs in the cytoplasm, and is catalyzed by fatty acid synthase. In animals, fatty acid synthase is a homodimer, with each chain approximately 250,000 Daltons in size. The tw...
【简答题】直接写出得数。 0.6×2= 0.04×10= 0.6×100= 0.5×0.2= 0.3×0.3= 0.6×0.5= 0.4×0.07= 0.01×0.1=
【简答题】6=3()=12:______=()30=______÷100.0.6= 3 () =12:______= () 30 =______÷100.