AB两点间的电压的符号为()。 A: I B: U<sub>AB</sub> C: R D: UA
AB两点间的电压的符号为()。 A: I B: U<sub>AB</sub> C: R D: UA
直流电路如图所示。其A点电位是()。 A: UA＝12V( B: UA＝0V( C: UA=-6V( D: UA=4V
直流电路如图所示。其A点电位是()。 A: UA＝12V( B: UA＝0V( C: UA=-6V( D: UA=4V
直流电路如图所示。图中A点的电位是()。 A: UA=-3V B: UA=7V C: UA=5V D: UA=6V
直流电路如图所示。图中A点的电位是()。 A: UA=-3V B: UA=7V C: UA=5V D: UA=6V
直流电动机运行于电动状态时，电枢电压Ua与电枢电动势Ea的关系为（ ）。 A: Ua>Ea B: Ua≥Ea C: Ua≤Ea D: Ua<Ea
直流电动机运行于电动状态时，电枢电压Ua与电枢电动势Ea的关系为（ ）。 A: Ua>Ea B: Ua≥Ea C: Ua≤Ea D: Ua<Ea
在线粒体遗传密码系统中，有4个终止密码子，它们是（）。 A: UA B: UA C: AG D: UGA E: UA F: UA G: UG H: AGA I: UA J: UA K: AG L: AGA M: UA N: UG O: AG P: AGA
在线粒体遗传密码系统中，有4个终止密码子，它们是（）。 A: UA B: UA C: AG D: UGA E: UA F: UA G: UG H: AGA I: UA J: UA K: AG L: AGA M: UA N: UG O: AG P: AGA
The teacher asked him to ___________ his lateness for school. A: account of B: account on C: account about D: account for
The teacher asked him to ___________ his lateness for school. A: account of B: account on C: account about D: account for
Which means “定期存款”?( ) A: checking account B: current account C: deposit account D: transactional account
Which means “定期存款”?( ) A: checking account B: current account C: deposit account D: transactional account
Which means “定期存款”? A: current account B: checking account C: ransactional account D: deposit account
Which means “定期存款”? A: current account B: checking account C: ransactional account D: deposit account
The manager had to step down ______ his poor heath. A: account of B: take account of C: on no account D: on account of
The manager had to step down ______ his poor heath. A: account of B: take account of C: on no account D: on account of
______ should any money be given to a small child. A: On no account B: For all account C: Of no account D: By all account
______ should any money be given to a small child. A: On no account B: For all account C: Of no account D: By all account