CA1091型汽车的变速器各档都采用了同步器传递动力。
参考答案:错
腹痛绵绵,时作时止,痛时喜按,大便或溏,神疲畏寒,苔薄白,脉沉细。治疗取穴应首选()
A.取督脉、足太阴经、手阳明经穴为主
B.取任脉、足阳明经穴为主
C.取背俞、任脉经穴为主
D.取足少阴经、足阳明经穴为主
E.取足厥阴经、足太阴经穴为主
In relation to international business transactions, explain the meaning of the following terms:
(b) letters of credit. (5 marks)