公母犬交配后会出现“锁结”现象，为避免消耗过多的体力，应尽快分开“锁结”犬，让其休息。()
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闹市区里面要建设廉租房，你是相应政府部门负责人。责成你论证，你如何进行？
为保证犬体本身正常发育和仔犬的健康，犬只有在体成熟后，才能进行繁殖活动。()
Patriotism makes one ready to ______(为国捐躯). It inspires people to work in joint efforts to defend the country.
What is the learning theory of the Direct Method as summarized by Comenius？
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