影响终端堵包的下列因素有（）。
A、终端零位
B、滑槽
C、夹爪
D、滑槽皮带
参考答案：A, B, C, D
Which is ___ way to go to school, by bus, by bike, or on foot?[ ]
A. the most tiring
B. the tiringest
C. more tiring
D. tiringer
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