网球技术的基本原则()
A、冲击性
B、正确性
C、稳定性
D、威胁性
参考答案:C, D
____ has been heated discussion over which country bakes the world’ s best pizza: Italy, where pizza began or the US, where it was globalized.
A.It
B.There
C.That
D.This
多见于生育期女性,妊娠时发生,可能与激素变化和胸廓的顺应性有关()
A.原发性自发性气胸
B.继发性自发性气胸
C.月经性自发性气胸
D.妊娠性自发性气胸
E.张力性自发性气胸