N2是具有无色（）味的气体。

Alice and her brother, Peter, saved money for many years. One day, they broke their money jar and decided to help other people.

“Who will we help?” Peter asked Alice. “Let’s help our neighbors, Billy and his twin sister, Rose. I’ve found that their shoes are too old. We can buy two pairs of shoes for them.” Alice said.

Alice and Peter went shopping at once. They picked out two nice pairs of shoes and put them into two beautiful boxes. When it was dark, Peter walked to Billy and Rose’s house quietly. He put the boxes near the door, knocked hard, and then ran away quickly.

Billy and Rose came out, “Look! There are presents for us. Someone left them here,” Billy said in surprise. They looked around, but they couldn’t see anyone. They took the boxes inside happily. The next morning, Alice and Peter saw Billy and Rose playing outside. They were both wearing their new shoes. Alice and Peter were so happy because they could help others.

根据短文内容，判断正(T)误(F)。

小题1:Alice and his brother, Peter were so careless that they broke their money jar.

小题2:They wanted to buy the twins new shoes.

小题3:Peter didn’t give the shoes to them face to face.

小题4:Billy and Rose happened to see Peter running away quickly.

小题5: Alice and Peter were happy when they saw Billy and Rose both wearing their new shoes.

灌装前需除菌滤过的药液的配制应在（）

A．1万级洁净区 

B．30万级洁净区 

C．一万级背景下局部100级 

D．10万级洁净区 

E．百级洁净区

下列关于滴丸基质和冷凝液的叙述不正确的是（）

A.常用的水溶性基质有：PEG类、硬脂酸钠、泊洛沙姆188和甘油明胶等

B.常用的脂溶性基质有：硬脂酸、单硬脂酸甘油酯、十六醇、十八醇、虫蜡、氢化植物油等

C.水溶性基质和脂溶性基质不能混合使用

D.脂溶性基质常用的冷凝液有水或不同浓度的乙醇溶液

E.水溶性基质常用的冷凝液有液体石蜡、二甲基硅油和植物油等

全棉男婴针织套头衫

下列属于ISUP支持的基本承载业务的是：（）

A.64kbit/s话音

B.64kbit/s不受限

C.话音和64kbit/s不受限交替

D.3.1kHz音频