Mrs. Smith locked both the front and the back doors before she went to bed______thatsomeone might steal into the house at night.

佝偻病激期最主要的表现是（）

4岁以上的儿童化脓性脑膜炎最常见的病原菌是（）

After months of voyage, Columbus arrived in ______ later proved to be a new continent.

Her talent and experience ______ her to the respect of her colleagues.

I'd like to remind you that there is no_____on the part of suspects to answer questions.

前囟门隆起最常见于（）

Homing pigeon is useful as a ______ carrier because when taken from home, it will return atthe first opportunity.

The proposal deserves support as it gives ______ to the needs of children.

2岁内小儿心尖搏动的位置是（）