栓剂质量评定中与生物利用度关系最密切的测定是:
A.融变时限
B.重量差异
C.体外溶出试验
D.硬度测定
E.体内吸收试验
参考答案:E
根据语境,填入适当的词语或句子,补全对话。
A: Excuse me, sir? Where is the nearest hotel?
B: 1 You may ask that policeman over there.
A: Thank you all the same.
A: Excuse me, ___2___?
C: No, there isn't, but there is one near the Bank of China.
A: 3 ?
C: It's about two kilometers away.
A: 4 ?
C: You'd better take a taxi, because it's so late and there aren't any buses now.
A: ___5___.
C: You're welcome.
如图所示,用线把小球A悬于O点,静止时恰好与另一固定小球B接触.今使两球带同种电荷,悬线将偏离竖直方向某一角度θ1,此时悬线中的张力大小为T1;若增加两球的带电量,悬线偏离竖直方向的角度将增大为θ2,此时悬线中的张力大小为T2,则( )
A.T1<T2
B.T1=T2
C.T1>T2
D.无法确定