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【单选题】
某高中随机选取5名女学生，其身高和体重数据如下表所示 编号 1 2 3 4 5 身高/cm 160 165 160 175 165 体重/kg 46 48 47 50 49 通过计算得到了体重y关于身高x的回归直线方程，则此直线一定过点（ ）A.
（165，49）
B.
（160，46）
C.
（175，50）
D.
（165，48）
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举一反三
【单选题】According to the author, seniority pay favors
A.
good teachers with master’s degrees.
B.
young and effective teachers.
C.
experienced and effective teachers.
D.
mediocre teachers of average quality.
【单选题】The two doctors might support which of the following statements?
A.
Left-handers stand a better chance of winning than right-handers in violence.
B.
Left-handers are more likely to commit crimes than the right-handers.
C.
Left-handers are directly responsible for the violence in traditional societies.
D.
There is no evidence that left-handers are more violent than right-handers.
【单选题】The following factors all play a part in preparing good teachers EXCEPT
A.
honoring teachers with awardsi
B.
recruiting top candidates.
C.
offering chances for promotion.
D.
providing graduate programs.
【简答题】民乐合奏形式多种多样,有 , , 。
【单选题】Mr. Lin is one of in our school. [ ]
A.
good teachers
B.
better teachers
C.
the best teachers
D.
the best teacher
【简答题】Good teachers ...
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