桥梁脚手架拆除时必须是()。
A、必须由上到下逐层进行,严禁上下同时作业
B、可以上下同时拆除
C、由下部往上逐层拆除
D、对于不需要的部分,可以随意拆除
参考答案:A
The nurse is caring for a client who exhibits magical thinking. Which of the following best describes magical thinking
A.Strong positive and negative feelings that cause conflict.
B.Returning to an earlier developmental stage.
C.Meaningless repetition of words.
D.The belief that thoughts or wishes can control other people or events.
动滑轮可以做平衡滑车。