在施工投标中,投标人也可以只对某合同段中的部分工程进行投标。 ( )
参考答案:错
解析:[简析] 投标人必须对整个合同段投标,只对某合同段中的部分工程投标者,将不予考虑。
用画线单词的反义词填空。
1. The elephant is heavy, but the dog is .
2. The panda is fat, but the monkey is .
3. The tiger is big, but the'bird is .
4. This problem ( x+y=6) is hard, but that problem (1+2=3) is .
5. This pencil-box is old, that pencil-box is .
下列哪个部位的浆细胞一般情况下不能产生IgE()
A.脾脏
B.扁桃体
C.支气管
D.鼻咽
E.胃肠道粘膜