下列属于特异性免疫的是（）_刷题宝

题干

下列属于特异性免疫的是（）

A：皮肤的屏障作用

B：溶菌酶的杀菌作用

C：接种卡介苗预防结核病

D：白细胞的吞噬作用

上一题下一题 0.0难度选择题更新时间:2018-01-01 08:10:58

答案(点此获取答案解析）

C

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鸟类的受精方式是____。蝗虫的变态发育过程经历了受精卵、若虫和成虫三个时期，这种发育于____。

同类题2

判断下列现象中，物体的内能是增加还是减小．

同类题3

比例尺一定，实际距离和图上距离成正比例

同类题4

Do you often buy vegetables in these____(市场)?

同类题5

阅读下面短文，根据内容为句子排序。

Today was a fun day. I walked to Mike's home in the morning. I studied English with him. We read funny stories together

Then I went to a park by bike. I flew(fly的过去式) kites. It was a windy day. Suddenly my kite flew into the lake

A dog saw the kite. He jumped into the lake and swam to it. Five minutes later, he gave(give的过去式) the kite back to me. I was very grateful to him.

(____)I flew kites.

(____)I went to Mike's home.

(____)The dog jumped into the lake and swam to the kite.

(____)The kite flew into the lake.

(____)He gave the kite back to me.

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