【判断题】锯齿的角度时:前面为0°,后面为40°,楔角为50°。
【单选题】振捣楼板、地面、板形构件和薄壳等薄壁结构一般应采用( )。
【单选题】The _____ of blood always makes him feel sick.
【单选题】Current genetic tests are able to______.
A.
identify customers' response to common medications
B.
diagnose customers' health state in the future
C.
judge customers' genetic inclination to some diseases
D.
find the cause for some diseases, such as glaucoma
【单选题】Disulfiram can prevent drinking by making the alcoholic______________.
A.
What medications treat alcoholism?
B.
What are drinking problems?
C.
Can alcoholism be cured?
D.
Does alcoholism treatment work?
F.
Can alcoholism be treated?
【多选题】关于混凝土振捣,下列做法妥当的是()
A.
插入式振动器振动混凝土时,应倾斜插人.并采用慢插快拔的施丁方式
B.
平板振动器适用于捣实楼板、地面、板形构件和薄壳等薄壁结构
C.
平板振动器振动时第一遍和第二遍的方向要互相垂直
D.
无论何种情况,只要时间允许,混凝土振捣的时间越长越好