A:⑤①④③②
B:③⑤①④②
C:⑤④②①③
D:③⑤④②①
人体免疫有三道防线,在这三道防线中,属于非特异性免疫的是 ( )
根据拼音将汉字依次写出,书写规范、工整、美观。 读书节期间,我徜徉在字里行间,倾听xīlì 的雨声,欣赏摇yè 的小草,感受作家的幽默juàn 永。
To_______ something means to become aware of it or understand it.
— There is little water left in the bottle, ______?— No, we need to buy some more before we run out of it.