The stainless steel bars are painted by().
A.lot
B.lots
C.a lot
D.the lots
参考答案:B
颈外静脉穿刺点位于()
A.下颌角与锁骨上缘中点上1/3处
B.下颌角与锁骨上缘中点上1/2处
C.下颌角与锁骨上缘中点下1/3处
D.胸锁乳突肌外缘与锁骨上缘中点下1/2处
E.胸锁乳突肌外缘与锁骨上缘中点上1/2处
We didn't hold the football match ______ the heavy rain. [ ]
A. because
B. since
C. because of