【简答题】当控制信号T=1时每来一个时钟信号它的状态就翻转一次,而当T=0时,时钟信号到达后它的状态保持不变,具备这种逻辑功能的触发器称为_________。
【多选题】关于药物的溶出速度描述正确的有()
B.
药物粒子越小,与体液的接触面积越大,溶解速度就会越大
C.
一般情况下无定型药物溶解速度比结晶型快,体内吸收也快
D.
难溶性药物制成盐,可使制剂的溶出速度增大,生物利用度提高
【多选题】What are the two reasons for the new approach to pricing? Click on two answers.
A.
The law has been changed.
B.
The companies want to provide better services.
C.
There are powerful computer programs.
D.
The companies want to attract more customers.
【多选题】According to the lecture, what are two effects of ethylene? Click on two answers.
A.
Fruit becomes softer as it ripens.
B.
Plants develop complex root systems.
C.
Trees shed their leaves in the fall.
D.
Flower buds open in the spring.
【多选题】2018年6月10日,上合组织成员国元首理事会第十八次会议在我国青岛召开,国家主席习近平首次系统性提出弘扬“上海精神”的“五观”,即( )。
【多选题】What environmental factors are required for a seed to germinate? Click on two answers.
D.
The proper temperature