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【单选题】
在有 n 个顶点的连通图中,其边数A.
最多有 n -1 条
B.
至少有 n -1 条
C.
最多有 n 条
D.
至少有 n 条
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【单选题】Nobody knows if he will marry Julia. But he says if he ___________ her, he will tell us.
A.
marries
B.
will marry
C.
marry
【简答题】由抽象上升到具体的过程是理性认识回到实践的过程。 ( )
【单选题】患者,女性,38岁,自从事铅作业以来,经常出现轻度类神经征,伴有腹胀、便秘。尿铅1.25μmol/L,尿中ALA75μmol/L,此患者可能是
A.
观察对象
B.
慢性轻度铅中毒
C.
慢性中度铅中毒
D.
慢性重度铅中毒
E.
正常
【单选题】He often says "I shall tell you about them." He often tells me that ____ will tell ____ about ____.
A.
I; you; them
B.
he; me; them
C.
he; you; us
D.
I; me; you
【单选题】He says he will tell ________ wants to know.
A.
whatever
B.
whoever
C.
whichever
D.
who
【单选题】Peter says he will tell Alice all this when he______her.
A.
will meet
B.
meet
C.
have met
D.
meets
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