两台机动吊车抬吊应具备什么基本条件？
参考答案：
能力的分配；吊角斜度不大于3°；吊钩不碰撞物体；速度平稳，物体保持水平；吊臂有足够的限位高度。
根据图示，完成对话。
A: Excuse me. Can you tell me how to get to the bank near here?
B: It's easy. Go 1 Bridge Street and turn 2 . Then walk along 3 Street until you see the post
office. And turn 4 . Go straight and you'll find the bank on the left. It's next to the post office and
5 from the park.
1. _____ 2. _____ 3. _____ 4. _____ 5. _____
The space suits can be adjusted so that the team can reproduce different levels of gravity as if they________in space.
A．are
B．has been
C．were
D．had been
