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【判断题】
在气相色谱分析中,柱温的选择应兼顾色谱柱的选择性及柱效率,一般选择柱温等于试样中各组分沸点的平均值或高于平均沸点10°C。( )A.
正确
B.
错误
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【简答题】(b) Explain what is meant by McGregor’s (i) Theory X (5 marks)
【单选题】--- I’m sure I will get good marks in the final exam. --- I believe your parents will ______ your study if you try your best.
A.
be satisfied with
B.
be angry with
C.
be bored of
D.
be worried about
【单选题】At first I________confidence to try it，but now I’m beginning to get the idea.And my marks have improved. [ ]
A.
missed
B.
lacked
C.
ordered
D.
left
【单选题】---I did very well in the Maths exam yesterday. ---I did _____ . I got full marks.
A.
no better
B.
no worse
C.
even worse
D.
not better
【单选题】—I'm sure I will get good marks in the mid-term exam. —I believe your parents will ______ your study if you try your best. [ ]
A.
be satisfied with
B.
be angry with
C.
be bored of
D.
be worried about
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