It's sometimes difficult to see the difference between a fad and a trend。()
![](https://lstatic.shangxueba.com/sxbcn/h5/images/tips_org.png)
第1题
People under a lot of () may experience headaches, minor pains and sleeping diffi
A stress
B exposure
C endurance
D endeavor
第2题
A.欧拉(Euler)
B.迪菲(Diffi
C.和赫尔曼(Hellman)
D.费马(Fermat)
E.Rivest、Shamir、Adleman
第3题
A.Symmetry, persistence,Sometimes it’s serious and sometimes it’s relieveD
B.Symmetry, persistence and gradual aggravation
C.Asymmetry, persistence,Sometimes it’s serious and sometimes it’s relieve
D.Asymmetry, discontinuity and gradual aggravation
E.Asymmetry, Discontinuity,Sometimes it’s serious and sometimes it’s relieve
D.
第6题
Sometimes it’s important for a mystery shopper to have the right().
A.program
B.profile
C.progress
D.process
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