第1题
第2题
第3题
第4题
举例说明各种ETL过程中的元数据。
第5题
举例说明各种ETL过程中的元数据。
第6题
In a dialogue, for example, someone says, "Would you be good enough to mm the radio down a bit7" (Instead of "Turn the radio down, please. ") If you used this extra-polite form. with a member of your family or with a close friend, it would seem very peculiar! However, when you use an extra-polite expression like "Would you be good enough'"" or "Would you be so kind as to…" with a stranger, you are trying to be very polite and courteous.
(30)
A.Informal language and polite forms.
B.Formal language and polite forms.
C.Formal language and impolite forms.
D.Informal language and casual forms.
第7题
A.which
B.lie on
C.one another
D.of long ago
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