【单选题】对客人的称呼下列( )不符合服务敬语的要求。
【简答题】交流电的三要素分为( )、( )和( )
【简答题】写出下列表示时间的短语的汉语意思。 1. ten thirty ____________ 2. five twelve ____________ 3. eleven fifty ____________ 4. three twenty ____________
【单选题】As the story proceeds, March begins to feel under the spell of ______.
【单选题】To determine the pressure and temperature limitations under which LFG is required to be transported on a barge,you should look at the ______.
A.
Certificate of Inspection
C.
rules and regulations for tank vessels
【判断题】正弦交流电的三要素为最大值、周期和初相角。
【判断题】正弦交流电的三要素为最大值、角频率、初相位。( )
【判断题】一个原理图元器件库文件中可以包含多个库元件。