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【单选题】
97 下面哪种组织培养可以不经过愈伤组织阶段。A.
茎段
B.
叶片
C.
花瓣
D.
花丝
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【简答题】Group 3 ________ a. It is hard to know which foods are safe to eat nowadays. ________ b. In some large ocean fish, there are high levels of mercury. ________ c. Undercooked chicken and hamburger may c...
【单选题】142 Terms are implied into employment contracts under common law (i.e. by judges), and statute.Which of the following is NOT a term implied by common law?
A.
Employers have a duty to provide a reference
B.
Employers have a duty to provide a safe system of work
C.
Employees have a duty to give honest and faithful service
D.
Employees have a duty to obey lawful and reasonable orders
【简答题】视觉识别系统由 与 两部分构成,是企业形象最直接也最直观的表现。
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【单选题】Terms are implied into employment contracts under common law (i.e. by judges), and statute. Which of the following is NOT a term implied by common law?
A.
Employers have a duty to provide a reference
B.
Employers have a duty to provide a safe system of work
C.
Employees have a duty to give honest and faithful service
D.
Employees have a duty to obey lawful and reasonable orders
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