题目内容

相传观音菩萨是坐在()寓意“圣洁之花”的植物上面。

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几台设备的接零线(或接地线)不得()接入零干线或接地体。

A. 串联
B. 并联

The vessel is out of harbor and in “Full Ahead”We are going to run fuel oil instead of () and open the fuel oil heater steam valve.

A. heavy oil
B. lube oil
C. fuel oil
D. diesel

风险的特点有哪些?

喜山晚期,我国东部主要以()为主.

A. 造山运动.
B. 断陷下沉

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