问题
多项选择题
FID点不着火的原因有（）。
A.点火组件故障
B.点火电路连线、接头断路
C.气路堵塞
D.氢气与空气配比不适合
答案
参考答案：A, B, C, D
搜题请搜索小程序“爱下问搜题”
FID点不着火的原因有（）。
A.点火组件故障
B.点火电路连线、接头断路
C.气路堵塞
D.氢气与空气配比不适合
参考答案：A, B, C, D
Passage Three
What mistaken view do most people hold about Arabic
A．Colloquial Arabic is the everyday spoken language, which varies from country to country.
B．Arabic is just one language that all Arabs understand, speak and write.
C．Classical Arabic and Modem Arabic are two different kinds of written Arabic.
D．Pan-Arabic provides a means of communication between educated people of different Arab nationalities.