支气管肺炎患儿宜采取的体位是（）。A．头侧平卧位B．去枕平卧位C．左侧卧位D．右侧卧位E．头高位或半

All flights ______ because of the snowstorm, we decided to take the train.

A．were canceled

B．had been canceled

C．having canceled

D．having been canceled

All flights because of the snowstorm ,many passengers could do nothing but wait.

A.had been cancelled

B.were cancelled

C.have been cancelled

D.having been cancelled

All flights ______because of the snowstorm, we decided to take the train instead.

A．were canceled

B．had been canceled

C．having canceled

D．having been canceled

All flights _________ because of the snowstorm, many passengers could do nothing but take the train.

A) had been canceled B) have been canceled

C) were canceled D) having been canceled

All the flights _________ because of the snowstorm, we had to take Ihe train instead.

A．were canceled

B．had been canceled

C．having canceled

D．having been canceled

All the flights ______ because of the snowstorm, we had to take the train instead.

A．were canceled

B．had been canceled

C．having canceled

D．having been canceled

All flights ______because of the snowstorm, we decided to take the train instead.

A．were canceled

B．had been canceled

C．having canceled

D．having been canceled

A、canceled

B、were canceled

C、are canceling

D、are canceled

All flights ______ because of the snowstorm, they decided to take the train.

A．were cancelled

B．have been cancelled

C．had been cancelled

D．having been cancelled

A．had been canceled

B．have been canceled

C．were canceled

D．having been canceled