【简答题】让我来介绍一下来自加拿大的玛丽,我们的新客户。
【单选题】A trade custom has been proved to the effect that in trade between Sarawak and Singapore mate's receipts ______ universally adopted as documents of title as in same way as bills of lading.
【单选题】The government is trying to do something to ______ better understanding between two countries.
【单选题】恒压供水系统中用于各水泵的工频与变频切换的是( )
【判断题】PLC的输入、输出单元均带有光耦合电路,其目的是把PLC与外部电路隔离开,以提高PLC的抗干扰能力。
【简答题】Trade between Singapore and Australia is ______.
【单选题】The government is trying to do something to ______ better understanding between two countries