【名词&注释】
履行合同(perform a contract)
[单选题]下列()是履行合同的基础。
A. A、交易前的准备
B. B、交易磋商
C. C、订立合同
D. D、履行后合同义务
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学习资料:
[单选题]“The engine not obtaining the sufficient speed for firing” means that ().
A. the start fails
B. the fuel pumps will be put into operation
C. the fuel valves are damaged
D. the combustion process will take over
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