舌腭不净
参考答案：
吸食后在口腔、舌头、喉部等部位感受有残留物
Do you think the bridge ______ 2000 meters long? It doesn't appear ______ long. [ ]
A. measures; that
B. is measured; so
C. is measured; such
D. measures; much
生物多样性是指地球上所有生物---（）及其所构成的综合体。
A.动物
B.植物
C.微生物
D.多物种群
