搜题请搜索小程序“爱下问搜题”
问题 填空题

如果把收入50元记作+50元，那么-50元表示的意义是 ______．

答案

“正”和“负”相对，

所以如果把收入50元记作+50元，

那么-50元表示的意义是支出50元．

故答案为支出50元．

单项选择题

母猪，产后2天体温升高，食欲下降，从阳门流出灰褐色液体，内含胎衣碎片，治疗应选择的药物组合是（）（1411-19）

A、抗生素、雌激素与催产素

B、人工盐与前列腺素

C、抗生素与孕酮

D、孕酮与催产素

E、雌二醇与孕酮
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听力题

动词填空 用括号内所给动词的适当形式填空

小题1:More than one person_________(clean) the classroom at 6 o’clock yesterday.

小题2:—Is London the first European city _____(hold) the Olympic Games?

—No, it has been held in many other places in Europe.

小题3:It’s said the price of food in China _______(rise) quickly recently.

小题4:I tried many ways I could think of _______ (stop) the little boy from crying.

小题5:Not only the students but also the teacher _________(ask)to go to school on time now.

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