Radhika just graduated from college. She recently quit her part-time job to focus on finding a full-time job that better uses the skills she acquired in college. Radhika is considered to be:
A.
structurally unemployed.
B.
frictionally unemployed.
C.
cyclically unemployed.
D.
employed, since she is focusing on finding a full-time job.
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参考答案:
举一反三
【简答题】已知向量 a =(1,cosx), b =( 1 4 ,-sinx) (1)当x∈[0, π 4 ]时,若 a ⊥ b ,求x的值; (2)定义函数f(x)= a ? ( a - b ) ,x∈R,求f(x)的最小正周期及最大值.