【单选题】There different classes in our school
【简答题】电离层由围绕地球的处于不同高度的3个导电层组成的,这3个导电层分别 称为( )、( )、( )。
【单选题】The teacher spoke so fast that it was hard for the students to ______ what he was saying.
【单选题】The teacher spoke so loudly as __ clearly in the crowded meeting hall.
【单选题】—What’s the matter? You looked unhappy. —Well, the teacher spoke so quickly and I can __________ understand it.
【单选题】There different classes in our school.
【单选题】The teacher spoke so fast that it was hard for the students to what he was saying.
【单选题】( )是指对特定标的具有购买能力(支付能力)的欲望。
【单选题】The teacher spoke so loudly ______ the students could hear him clearly.
【单选题】There different classes in our school.