问题
单项选择题
关于淋巴瘤的说法正确的是（）
A.NHL易演变成淋巴瘤细胞性白血病
B.R-S细胞是HL病理学特征
C.NHL累及胃肠道较HL多见
D.NHL较HL更易远处播散
E.以上均正确
答案
参考答案：E
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关于淋巴瘤的说法正确的是（）
A.NHL易演变成淋巴瘤细胞性白血病
B.R-S细胞是HL病理学特征
C.NHL累及胃肠道较HL多见
D.NHL较HL更易远处播散
E.以上均正确
参考答案：E
Football is so popular in China. Almost everyone is interested in the sport — young and old, boys and girls, and now even robots. Last week at Hangzhou Guangming Middle School, kids from several schools played football with their robots. Robot football was very different from human football. Only two robots played in each match. The field was as big as a ping-pong table. One half was black and the other was white. Each robot tried to catch the “football” and score a goal. The robot with more goals won. Gao Linge, a boy from Guangming Middle School, helped make one of the robots for the match. “My school bought the main board (主板),” said Gao, 14. “Then I decided what my robot looked like and made a computer programme for it.” Gao’s robot was eight centimeters tall and had two arms. It had four sensors (传感器) to “see” and “kick” the football. Ying Xuehai, a 12-year-old student from Gao’s school, also made a robot. His robot played against Gao’s. The match decided who would go to the final game. Ying lost the game. So he gave many of his robot’s parts to Gao. Even so, Gao’s robot didn’t win the final. It played well in the first five minutes. Then it slowed down. By the end of the match, it could hardly move. What was wrong? Gao and Ying found the problem — their robot ran out of batteries (电池)! “We’ll solve the problem and beat the other school next time!” said the two boys. 小题1: How many robots are needed in one match?
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