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【单选题】
每100ml固体培养基中含琼脂( )A.
15-20g
B.
5-10g
C.
2-3g
D.
0.5-1.0g
E.
0.05-0.1g
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反馈参考答案：
举一反三
【单选题】The girl___ the shoes that match the dress.
A.
picked on
B.
picked up
C.
picked out
D.
picked over
【简答题】A．gathered B．speeded C．worked D．picked
【简答题】A．turned out B．turned in C．picked out D．picked up
【单选题】He ______ the local accent while working in Tibet.
A.
picked up
B.
picked out
C.
wore off
D.
made a fuss of
【单选题】Ripe apples________, as an experienced farmer once told.
A.
are picked easy
B.
pick easy
C.
are picked easily
D.
pick easily
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