乙炔管道中使用的压力计,应采用U形汞压力计。( )
参考答案:错
周围性眩晕可见于()。
A.迷路炎
B.癫痫
C.多发性硬化
D.高血压脑病
E.小脑出血
It is a market which sales value might be more than 10 billion yuan.()
A. a market with a sales value that might be
B. a market which might be sales value
C. a market with sale value might be
D. market with sales might be a value