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【多选题】
关于种子包衣描述正确的是( )。A.
将具有药效、肥效的种衣剂均匀地粘附在经过精选的玉米种子表面
B.
种衣剂能杀死种子表面病菌，防治病虫
C.
可促进玉米生长发育
D.
提高产量和改进品质
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举一反三
【简答题】女,67岁,农民,消瘦,病人感觉腹部跳动,神情紧张,经医生检查腹部跳动的原因是腹主动脉跳动。请问腹主动脉的脏支有哪些?其中不成对脏支主要分布在哪些器官?
【单选题】He is quite worn out for years of hard work.He is not the man he was twenty years ago.
A.
which
B.
that
C.
who
D.
whom
【单选题】He is quite worn out from years of hard work. He is not the man _____ he was twenty years ago.
A.
which
B.
that
C.
who
D.
whom
【简答题】真空中，电荷量Q(＞0)均匀分布在长为L的细棒上，如图所示在细棒的延长线上距细棒中心O为q的P点处放一电荷量为q(＞0)的点电荷，求带电细棒对该点电荷作用的静电力．
【单选题】He is quite worn out from years of hard work. He is not the man _______ he was twenty years ago.
A.
that
B.
which
C.
who
D.
whom
【单选题】He is quite worn out from years of hard work. He is not the man ______ he was 20 years ago.
A.
which
B.
that
C.
who
D.
whom
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