如图是钠元素的原子结构示意图，下列有关钠原子的叙述不正确的是（ ） A．质子数是

请根据括号中的中文提示、英文释义或句意，写出句中所缺单词，使句子通顺。

小题1:Everyone came to the meeting late for        (different) reasons.

小题2:What a great        (建议) the teacher gave me. It is always good for my study.

小题3:Now the student has begun to        (get to know and understand ) that he was wrong.

小题4:My teachers often        ( 鼓励 ) me not to give up when I face difficulty.

小题5:Bill Gates’ achievements go       setting up Microsoft Corporation. He has also donated lots of money to charity.

茯苓主产于（）

A．安徽

B．陕西

C．四川

D．江西

E．广东

（）《典论·论文》是中国第一篇文学批评的专门论文，涉及了文学批评中几个很重要的问题，在文学批评史上起了开先河的作用。

电缆导线截面的选择是根据（）进行的。

A.额定电流

B.传输容量

C.传输容量与短路电流

辑佚