红花的显微特征是()
A.花粉粒3萌发孔
B.花冠、花丝、柱头碎片多见
C.花柱表皮细胞
D.草酸钙方晶
E.晶纤维
参考答案:A, B, C, D
可抑制T4在周围组织中转化为T3的抗甲状腺药物是()
A.甲硫氧嘧啶
B.丙硫氧嘧啶
C.卡比马唑片(甲亢平)
D.他巴唑
E.碳酸锂
— I usually go there by train.
— why not _____by boat for a change. [ ]
A. to go
B. going
C. go
D. you go