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【单选题】
急性胰腺炎炎症波及整个胰腺，主要表现为A.
腹部压痛
B.
呕吐
C.
腹胀和肠呜音稍减弱
D.
剧烈腹痛并束带状向两侧腰背部放射
E.
一般情况差
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反馈参考答案：
举一反三
【单选题】The term paper was due to December 1, but hard as he tried, he was unable to meet the _____ for it.
A.
challenge
B.
need
C.
deadline
D.
date
【单选题】He was unable to make much progress, hard ______ he tried.
A.
unless
B.
as
C.
however
D.
because
【简答题】左连接查询(LEFT JOIN 或 LEFT OUTER JOIN) (1)为文章表添加一条记录 (2)利用左外连接对文章表和栏目表进行查询
【单选题】在SQL语言中，左外连接查询的连接命令是（ ）
A.
LEFT OUTER JOIN…ON
B.
RIGHT OUTER JOIN…ON
C.
WHERE
D.
INNER JOIN…ON
【单选题】左外连接查询中，主表在（ ）
A.
LEFT OUTER JOIN的左边
B.
LEFT OUTER JOIN的右边
C.
RIGHT OUTER JOIN的左边
D.
RIGHT OUTER JOIN的左边
【简答题】INNER JOIN代表___连接;LEFT OUTER JION代表___连接。
【单选题】Why is the woman unable to contact a colleague?
A.
He is at the office on Falcon Street.
B.
He is out of town.
C.
He has switched off his cell phone.
D.
He is in a discussion.
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