患者面赤、心烦、口渴,小便黄赤灼热,尿色鲜红,舌红,脉数,诊断为()
A.血淋
B.尿血
C.消渴
D.气淋
E.热淋
参考答案:B
The practice of hanging clothes across the street is a common ______ in many parts of the city.[ ]
A. look
B. sign
C. sight
D. appearance
下列关于育种的叙述中,正确的是()
A.用物理因素诱变处理可提高突变率
B.诱变育种和杂交育种均可形成新的基因
C.三倍体植物不能由受精卵发育而来
D.诱变获得的突变体多数表现出优良性状