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【单选题】
以下关于样品预处理的原则与目的,所述不正确的是A.
消除干扰因素
B.
完整保留被测组分
C.
杀灭微生物，使样品保存更长时间
D.
使被测组分浓缩
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举一反三
【单选题】―Are you disappointed with the result of the experiment? ―No. ______, I’m pleased with it.
A.
On the contrary
B.
As a result
C.
What’s more
D.
On the one hand
【单选题】May I introduce myself? I’m Steward.— ().
A.
Pleased to meet you
B.
What a pleasure
C.
I don’t know
D.
Thanks a lot
【单选题】I'm very _____ with what _____ at the meeting. [ ]
A.
pleased; he said
B.
pleased; will he say
C.
pleasant; he will say
D.
pleasant; he spoke
【单选题】The following are all correct responses to "I'm very pleased to meet you." EXCEPT .
A.
Likewise
B.
Me too
C.
So am I
D.
I'm very pleased to meet you too
【简答题】Goodbye，Mr．Smith．I’m very pleased＿＿＿．
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