問題詳情

47. According to the passage, which statement is true about the silk threads?
(A) They are all sticky and extendable.
(B) They are usually strong enough to last for a day.
(C) They remove harmful chemicals from insects.
(D) They are made of rare plants in the environment.

參考答案

答案:B
難度:困難0.2
統計:A(10),B(3),C(2),D(0),E(0)

內容推薦