【单选题】As the director can't come to the reception, I'm representing the company __________.
【单选题】--------- Come and join us, Jim! ---------- I’m sorry I can’t . If I _______ time, I would certainly go.
【单选题】[单选题]电动吊篮的离心触发式安全锁的触发机构是()。
【单选题】[单选题]电动吊篮的离心触发式安全锁锁绳速度不大于()m/min。
【单选题】电动吊篮的离心触发式安全锁的触发机构是( )。
【单选题】单片机外部中断INT0,INT1,INT2的触发方式分别有( )种
【单选题】——Can you come and play basketball with us? ——______ .
A.
Sorry, I can't. I have to finish my homework first
B.
No, I am not. I'm very busy now
C.
Yes, I do. I like it very much
【单选题】电动吊篮的离心触发式安全锁的触发机构是()。
【简答题】Thank you very much for your _________(invite). But I’m so sorry that I can’t come to your party tomorrow.