计算:(2-5)(2+5)=______.

题型:填空题

问题:

计算:(2-
5
)(2+
5
)=______.
考点:二次根式的加减乘除混合运算,二次根式的化简
题型:填空题

—Mom, I am afraid that I can’t get through the hard time we’re having now.

—My boy,be brave and tell yourself       .

A.don’t give up

B.not to gove up

C.not give up

D.to give up

题型:填空题

上腹部被汽车撞伤4小时,患者面色苍白,四肢厥冷,脉搏140次/分,血压60/40mmHg,肌紧张及反跳痛,首先应考虑为()

A.胃破裂

B.十二指肠破裂

C.肝脾破裂

D.严重的腹壁软组织损伤

E.腹膜后血肿

题型:填空题

The person who was taking photos asked the family to sit  ________and listen ________to his order.

A.closely;close

B.close;closely

C.close;close

D.closely;closely

题型:填空题

简述分解试样的方法有几种?

题型:填空题

汽车经过长期使用,耗油量超过原出厂标准的15%,虽经检修或更换零部件,在正常道路条件下行驶仍无好车,应列入()。

A.维修计划

B.改造计划

C.报废计划

D.改型计划

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