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【多选题】
T细胞TCR识别抗原的辅助受体(co-receptor)分子是()A.
CD2
B.
CD3
C.
CD4
D.
CD8
E.
CD28
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【单选题】A comparison and contrast paragraph or essay can be organized by either a block method or a slice method. What method is used in the following paragraph? Boston and Detroit are completely different c...
A.
Block method
B.
Slice method
C.
/
D.
/
【判断题】A comparison-contrast paragraph can be organized in a block-to-block pattern or a point-to-point pattern.
A.
正确
B.
错误
【单选题】在安装有道口信号轨道电路（闭路式和开路式制式）的闭路控制器输入输出两设备中点左右（）范围内的电容应替换为道口专用补偿电容。
A.
100m
B.
200m
C.
300m
D.
400m
【判断题】Block comparison or block contrast is to examine one thing thoroughly and then examine the other. In this way, the aspects examined in the two things should be identical and in the same order.
A.
正确
B.
错误
【单选题】在安装有道口信号轨道电路（闭路式和开路式制式）的区段，须采用道口专用补偿电容，ZPW？CBGD-2300对应载频下等效电容值（）。
A.
40uF±4uF
B.
46uF±4.6uF
C.
55uF±5uF
D.
55uF±5.5uF
【单选题】A comparison and contrast paragraph or essay can be organized by either a block method or a slice method. What method is used in the following paragraph? Boston and Detroit are completely different ci...
A.
Block method
B.
Slice method
【单选题】在安装有道口信号轨道电路(闭路式和开路式制式)的区段,须采用道口专用补偿电容，ZPW·CBGD-1700对应载频下等效电容值( )
A.
40uF±4uF
B.
46uF±4.6uF
C.
55uF±5uF
D.
55uF±5.5uF
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