确诊子宫内膜异位症的方法是（） A.病史及妇科检查 B.B型超声检查 C.血CA12

小题1:My mother asked me to buy two __________on my way back home. (tomato)

小题2:The family are having a party to celebrate their child’s _________ birthday.(five)

小题3:Please help ___________ to the fruit on the plate, children. (you)

小题4:Peter felt ___________ sick yesterday so he asked for leave. (terrible)

小题5:We are sorry to hear the bad news of the  ____________ MH 370 on TV. (fly)

小题6:How I wish the heavy haze(雾霾)could ___________ in our city. (appear)

小题7: The government in Fengxian is planning to __________the roads to solve the heavy traffic. (wide)

小题8:US First lady Michelle Obama gave a_________ at Peking University and met with Chinese and US students in March. (speak)

用科学计数法表示20080000=（    ）。

如图所示，飞机距地面高度为H，水平飞行速度v₀，地面上停着一辆汽车，与飞机水平距离为X，欲使飞机投出炸弹击中汽车，H、v₀、X应满足什么关系？(重力加速度为g)．

患者，男性，35岁，溃疡病史5年，呕血2次。1小时再次呕血，自觉出汗、心悸。查体：心率120次/分，四肢湿冷。护士评估其出血量为（）

A.>200ml

B.>250ml

C.>300ml

D.>350ml

E.>400ml

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