测定土壤pH、速效养分等所用的土壤样品细度为（）mm A.0.25 B.0.5 C.

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问题单项选择题

测定土壤pH、速效养分等所用的土壤样品细度为（）mm

A.0.25

B.0.5

C.0.75

D.1

答案

参考答案：D

选择题

-________ busy schoolwork, the children also have to take arts, music and sports classes in their free

time.

-I wonder what they will become.[ ]

A．Rather than

B．Owing to

C．Except for

D．Apart from

单项选择题 A2型题

患者女，27岁。有不洁性接触史，会阴区皮肤多发菜花状突起2周，无瘙痒，无疼痛，易擦破出血。考虑诊断为（）

A.湿疹

B.股癣

C.梅毒

D.尖锐湿疣

E.皮脂腺囊肿