地下工程塑料防水板的搭接缝必须采用（）连接
A.粘结法
B.热风焊接法
C.黯然圈固定
D.叠接法
参考答案：B
APTT延长（）.
A.口服抗凝药
B.血友病B
C.DIC早期
D.血小板无力症
E.再生障碍性贫血
All the people in that town, students or town folks, _______ the books, records and magazines in our university’s library. They can even surf the internet there.
A．are allowed to
B．are admitted to
C．have access to
D．have approach to
