眼周注射有（）.
A.球结膜下注射
B.球筋膜下注射
C.眼睑皮下注射
D.眼内注射
E.球后注射
参考答案：A, B, E
招标组织形式包括（）和委托招标。
People can find so many good things, such as useful information and lovely pictures on the web, __________ it is also a global village filled with bad things.
A．what
B．when
C．where
D．while
