泥一水玻璃是一种常用的注浆浆液,下列不属于水玻璃浆液特点的是()
A.凝胶时间短
B.浆液用量少
C.可注性和可控性好
D.结石体强度高
参考答案:B
John thinks it would be long ________ he is ready for his new job.
A.when
B.after
C.before
D.since
车身门盖的特殊工艺有涂胶工艺、折边工艺、()
A.固定成形工艺
B.感应加热工艺
C.冲压工艺