用长为1、4、4、5的线段为边作梯形,则这个梯形的面积为______.

题型:填空题

问题:

用长为1、4、4、5的线段为边作梯形,则这个梯形的面积为______.

考点:梯形,梯形的中位线
题型:填空题

短文改错题。One Sunday last month I go shopping with my friends. Luckily in a crowded store, I had my wallet losing. I was such upset that I almost shouted. I was afraid to tell to my parents the truth. So I went back to school without some money. I didn’t know what to do next. I didn’t eat anything Monday. My roommate Mary found something wrong with me but she asked me about the problem. I told him the truth. Then Mary lent me some money, with that I lived through the terrible week.

题型:填空题

注入印度洋的河流是(  )

A.湄公河

B.长江

C.恒河

D.勒拿河

题型:填空题

代谢性碱中毒的特征是()。

A.HCO3-下降,pH下降,PaCO2正常

B.HCO3-上升,pH上升,PaCO2正常

C.HCO3-下降,pH上升,PaCO2下降

D.HCO3-正常,pH下降,PaCO2下降

E.HCO3-正常,pH下降,PaCO2上升

题型:填空题

胶带输送机必须装设()。

A.驱动滚筒防滑保护

B.不需任何保护

C.堆煤保护

D.防跑偏装置

题型:填空题

小腹泻轻型与重型的主要区别点是()。

A.每日大便次数

B.有无呕吐

C.有无发热

D.脱水、电解质紊乱

E.大便性质

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