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【单选题】
光呼吸是一个氧化过程,被氧化的底物是( )A.
甘油酸
B.
乙醇酸
C.
丙酮酸
D.
葡萄糖
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反馈参考答案：
举一反三
【单选题】关于关键线路，下列说法正确的是( )。
A.
关键线路是整个工期最短的线路
B.
关键路线上的活动是影响整个工程进度的主要因素
C.
关键线路是完成时间上有富裕，有机动时间的线路
D.
关键线路是有时差的节点连结成的线路
【单选题】听力原文：W: How long will it take you to fix my bike? M: About half an hour. Q: What is the probable relationship between the two speakers? (12)
A.
Customer and repairman.
B.
Patient and doctor.
C.
Lawyer and client.
D.
Boss and secretary.
【简答题】第一章 习题.doc
【单选题】听力原文：W: Can I help you? M: Thanks. How long will it take to London by airmail? Q: Where are they talking? (23)
A.
In a post office.
B.
In a cinema.
C.
At home.
【单选题】听力原文：W: How long will it take you to fix my watch? M: I'll call you when it's ready. Q: What is the man going to do? (13)
A.
He wants the woman to fix his watch.
B.
He will call her when the watch is fixed.
C.
He wants her to fix the watch within one week.
D.
He doesn't want to go home.
【单选题】下列关于关键线路和关键工作的表述，错误的是( )。
A.
总持续时间最长的线路为关键线路
B.
关键线路的长度就是网络计划的总工期
C.
总时差为零的工作为关键工作
D.
关键线路在执行过程中可能会转移
【单选题】关键线路是决定网络计划工期的线路,与非关键线路间关系是( )。
A.
关键线路是不变的
B.
关键线路可变成非关键线路
C.
非关键线路间不可能成为关键线路
D.
关键线路的工期一定＝非关键线路的工期
【单选题】听力原文：W: How long will it take you to fix my watch? M: I'll call you when it's ready. Q: What is the man going to do? (8)
A.
He wants the woman to fix his watch.
B.
He will call her when the watch is fixed.
C.
He wants her to fix the watch within one week.
D.
He doesn't want to go home.
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