考博考试

【单选题】Some linguists believe that the ______ age for children learning a foreign language is 5 to 8.
A．optimistic
B．optional
C．optimal
D．oppressed
网考网参考答案：C
网考网解析：
optimal最佳的，optimistic乐观的，optional可选择的、随意的，oppressed受压抑的。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>