问题
单项选择题
若一段小路把J和K连接起来，则下面哪两个农舍必须得被一条小路连接起来
A．J，M
B．K，N
C．K，O
D．L，O
答案
参考答案：D
解析：J和K相连时，已知J和N，K和L相连，根据题干条件，剩下的两条路只能是M和 N相连，L和O相连
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若一段小路把J和K连接起来，则下面哪两个农舍必须得被一条小路连接起来
A．J，M
B．K，N
C．K，O
D．L，O
参考答案：D
解析：J和K相连时，已知J和N，K和L相连，根据题干条件，剩下的两条路只能是M和 N相连，L和O相连
| Paul和Jenny正在制作课程表,请阅读下面的对话，完成文后的表格。 Paul: We must give each subject enough (足够的) periods (课时). Our English lessons are really interesting. I'd like to have them every day. So what about having an English lesson on Tuesday, the first period? Jenny: OK. My favourite subject is math. I'd like to have two periods after the recess (课间休息) on Monday. Paul: What about those boring social subjects? We'd better not have two periods of them. Jenny: Well. Put geography (地理) on Monday, the third period; history (历史) on Wednesday, the fifth period; biology (生物) on Thursday, the period before lunch and P.E. on Friday, the period before the recess. Paul: Oh, I forget the Chinese lessons. Can we put them before recess on Tuesday? Jenny: OK. The science (科学) lesson should be on Friday before lunch. Is everything done?
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