由题意得:a+b=0,cd=1,
则a+b+3cd
=0+1
=1.
故答案为:1.
根据所给汉语提示,写出空缺处单词正确形式。
1. There are many _______ (云) in the blue sky.
2. It is very _______ (潮湿的) here in spring .
3. The _______ (温度) will be high tomorrow.
4. We're_______ (可能) not able to finish the work on time.
5. It _______ (可能) be cool soon
钱穆在《国史新论》中说:“汉代宰相是首长制,唐代宰相是委员制”。这表明()
A.宰相由一人到多人,权力被分割
B.宰相位尊权重的地位进一步加强
C.封建统治出现民主化的演变趋势
D.汉代宰相掌握实权,唐代宰相形同虚设