碱洗通常是在()的温度下进行的。
A、50~60℃
B、60~70℃
C、80~90℃
D、90~100℃
参考答案:C
用单词的适当形式填空
小题1:It’s about twenty __________(分钟)walk from here to the post office.
小题2:The _____________(音乐人) like guitars and violins
小题3:Lots of ________ (村民) never leave the village.
小题4:He ________________(想念) his family every day.
小题5:He has an English test tomorrow , so he ________ (学习) for the test now.
试述哺乳仔猪培育的技术措施。