微量元素主要有:铁、铜、锌、锰、钼、硼、碘、钴、氯、钠等。
参考答案:对
Our programs come second to theirs.
A.come second after
B.are second only to
C.are first except for
D.are first place from
模板台车在浇筑混凝土期间,重量达200t以上,台车除调整()外,应设承重的竖向螺杆和模板径向螺杆,当台车就位后,应用螺杆将台车和模板锁定。