“花生米”是由什么发育成的?( )
A.胚乳
B.胚珠
C.子房
D.子房壁
花生属于果实,是由子房发育而成,花生米是种子,是由胚珠发育而成的.
故选B
The coat was bought two years ago,and I'm afraid it is too small________ me now. [ ]
A. to
B. for
C. about
D. on
67Ga显像中,临床价值不大者是()
A.原因不明的发热,疑有恶性淋巴瘤者
B.临床疑有隐匿性转移癌患者
C.肺癌纵隔及肺门淋巴结转移病灶探测
D.恶性淋巴瘤治疗后疗效判断及预后评估
E.肝癌与肝脓肿鉴别