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【单选题】
消化道平滑肌的基本电节律起于A.
环形肌层
B.
斜形肌层
C.
纵形肌层
D.
粘膜层
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反馈参考答案：
举一反三
【单选题】Which of the listed chemicals can be routinely used to maintain the hygienic quality of potable water?
A.
Hydrochloric acid
B.
Chlorine
C.
Sulfuric acid
D.
Zinc chromate
【判断题】The DBMS can maintain the integrity of the database by not allowing more than one user to update the same record at the same time.
A.
正确
B.
错误
【单选题】Companies can maintain good business relations by abiding by their promises and agreements.
A.
coming up with
B.
breaking away from
C.
living up to
D.
getting rid of
【单选题】The DBMS can maintain the integrity of the database by allowing ______ to update the same record at the same time.
A.
more than one user
B.
no more than one user
C.
two customers with similar customer numbers
D.
company specialists
【简答题】Scholars maintain that social development can easily _____ language changes. A. bring forward B. bring about C. bring out D. bring up
【单选题】According to Paragraph 2, that the world can maintain its linguistic diversity in the future is ______.
A.
uncertain
B.
unrealistic
C.
foreseeable
D.
definite
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