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【单选题】
Children and teenagers with flu symptoms should avoid taking aspirin during an influenza infection, because doing so can lead to Reye's syndrome, a rare but potentially fatal disease of______.
A.
the kidney
B.
the lungs
C.
the pancreas
D.
the liver
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【单选题】I won lots of money. I gave some to my parents and the rest to charity. [     ]
A.
gave
B.
is given
C.
were given
D.
was given
【单选题】如下有向带权图,若采用迪杰斯特拉(Dijkstra)算法求源点a到其他各顶点的最短路径,得到的第一条最短路径的目标顶点是b,第二条最短路径的目标顶点是c,后续得到的其余各最短路径的目标顶点依次是()
A.
d,e,f
B.
e,d,f
C.
f,d,e
D.
f,e,d
【简答题】B Kong Linghui I was the only child in my family. And my parents gave me the best of everything. I went to the best schools. My parents wanted me to have the best, but I still had to help out over the...
【单选题】对下图有向带权图,若采用迪杰斯特拉(Dijkstra)算法求源点a到其他各顶点的最短路径,则得到的第一条最短路径的目标顶点是b,第二条最短路径的目标顶点是c,后续得到的其余各最短路径的目标顶点依次是()。
A.
d,e,f
B.
e,d,f
C.
f,d,e
D.
f,e,d
【单选题】I argued with my parents until they finally ______ and let me drive every day.
A.
gave off
B.
gave out
C.
gave in
D.
gave over
【多选题】液压缸泄内泄将()。
A.
影响液压缸的技术性能
B.
动速度缓慢
C.
工作不平稳
D.
资源浪费
E.
将导致环境污染
【单选题】下列哪个是蛋白质二级结构的结构基础( )
A.
双螺旋
B.
肽键平面
C.
α-螺旋
D.
肽键
E.
氢键
【单选题】对如下有向带权图,若采用迪杰斯特拉(Dijkstra)算法求从源点a到其他各顶点的最短路径,则得到的第一条最短路径的目标顶点是b,第二条最短路径的目标顶点是c,后续得到的其余各最短路径的目标顶点依次是( )【图片】
A.
d,e,f
B.
e,d,f
C.
f,d,e
D.
f,e,d
【单选题】My parents gave _______ a nice toy dog for my birthday. [     ]
A.
I
B.
me
C.
my
D.
mine
【单选题】下列哪个不是蛋白质的二级结构:
A.
α-螺旋
B.
β-转角
C.
β-折叠
D.
双螺旋
E.
无规则卷曲
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