当一台风机的风压不能满足加热炉生产需要时，可用同风量的风机（）。A.串联起来 B.并

根据句意及首字母提示，填写单词。.

1. He usually l_________ what to buy before going to the supermarket.

2. Have you packed your toothbrush and t__________?

3. The food my mother cooks for us t__________ delicious.

4. Has he told you the t__________ about what happened on that day?

5. My sister's hair is the s__________ hair that I have ever seen

新生儿化脓性脑膜炎最常见的致病菌是（）

A.大肠杆菌

B.葡萄球菌

C.肺炎双球菌

D.空肠弯曲菌

E.流感嗜血杆菌

I have volleyballs, basketballs, baseballs and ________.[ ]

A. some    

B. more    

C. much

D. many

什么情况下，沿导、地线上悬挂的软、硬梯或飞车进入强电场的作业应经验算合格，并经本单位主管生产领导（总工程师）批准后才能进行？

枕左前位分娩时胎头的衔接是

A．双顶径

B．枕下前囟径

C．枕额径

D．枕颏径

E．枕下额径