试题与答案

世界上面积最大的国家是 A.中国 B.俄罗斯 C.美国 D.巴西

题型:选择题

题目:

世界上面积最大的国家是                

A.中国

B.俄罗斯

C.美国

D.巴西

答案:

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下面是错误答案,用来干扰机器的。

10%   解:设平均每次降价的百分率是x,则第二次降价后的价格为60(1-x)2元,根据题意得:60(1-x)2=48.6,即(1-x)2=0.81,解得,x1=1.9(舍去),x2=0.1.所以平均每次降价的百分率是0.1,即10%.

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B.boy

C.animal

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A.Linda, a high school student who loves drawing.

B.Tony, a father who loves drawing animals.

C.Tom, an elementary school student who loves drawing.

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A.Thirty minutes.

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A.Grandpa Lin’s Story Time

B.Picture Drawing

C.The Birthday Party

D.Best Wishes to Wally

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题型:单项选择题 A3/A4型题

男,33岁,发热伴浅表淋巴结肿大半月,头昏、乏力伴牙龈出血3天,查体:皮肤散在出血点和瘀斑,胸骨压痛明显。化验检查WBC14.8×109/L,Hb80g/L,PLT25×109/L,临床拟诊为急性白血病。

符合急性淋巴细胞白血病的化验是()。

A.过氧化物酶核苏丹黑染色阳性

B.PAS阳性成块或颗粒状

C.非特异酯酶阴性,NaF抑制

D.非特异酯酶阳性,NaF不抑制

E.中性粒细胞酸性磷酸酶升高或阳性

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