A:−3
B:−2
C:2
D:3
如图1示,小明在探究“杠杆的平衡条件”实验中所用的实验器材有:杠杆、支架、弹簧测力计、刻度尺、细线和质量相同的钩码若干个.
⑴How can you get to the school ?____
⑵Happy birthday !____
⑶What's the weather like in summer ?____
⑷May I speak to Mike ?____
⑸Where is your aunt from ?____
A、It's cold .
B、Shenzhen .
C、Thank you .
D、Take bus No.4 .
E、Yes , speaking .