参加承兑行为须以汇票不获承兑,并作成拒绝证书为前提。
参考答案:对
Quite a few employees’ payments are cut down and barely cover their household ________ due to the serious economic crisis.
A.bills
B.expenses
C.prices
D.charges
油品罐的安全附件主要有( )、阻火器、放水阀、排污阀。
A.安全阀 B.呼吸阀C.泄压阀 D.报警器