乳酸杆菌采用Dentocult-LB试验,附着板≤1000时为()。
A.无龋活性
B.龋活性非常显著
C.低度龋活性
D.中度龋活性
E.龋活性显著
参考答案:C
选择dry up或dry out,并用其适当的形式填空。
1. The farmers pumped water to their fields to stop the soil ____.
2. The pool ____ in the late autumn.
3. The villagers had to wait for the sun to ____ the dirt road.
4. Don't leave the vegetable on the table, or it will ____.
感恩,是我们生活中永恒的话题。学会感恩,学会热爱生活,我们将会感受到更多快乐。假如你校拟举行一次有关“感恩”的演讲比赛,请你根据以下要点写一篇英语演讲稿。
要点:
1. 感恩对象(如:父母、老师、朋友……);
2. 为何感恩;
3. 如何感恩;
注意:
只能选择一个感恩对象;
可对所给要点做适当发挥;
演讲稿中不得提及考生所在的学校师生或本人姓名;
词数在130字左右;开头已给出(不计词数)。
Good afternoon, everyone! it’s a great honor to have the opportunity to be with you today. The topic of my speech is “Thank you, mum”