模版安装必须稳固牢靠,接缝严密,不得漏浆。模版与混凝土的接触面必须清理干净并涂刷()。
A.油漆
B.隔离
C.石灰
参考答案:B
Mr. Brown’s condition looks very serious and it is doubtful if he will ________.
A.pull back
B.pull up
C.pull through
D.pull out