【判断题】蓄电池在电路中必定是电源,总是把化学能转换为电能。()
【简答题】(ii) consignment inventory and (3 marks)
【判断题】蓄电池在电路中必定是电源,总是把化学能转化为电能。
【单选题】The consignment certainly does not match the samples ____ you sent us last month.
【判断题】One of the disadvantages of consignment is that there is much risk for the sellers.
【单选题】格塞尔双生子爬楼梯比较试验,证明了( )因素对人的发展有一定 影响。