文字题和几何题都是弱项，请教难题。

To be eligible for retirement benefits at
the Omega Corporation, the sum of an employee’s age, in years, and the number
of years of employment must be at least 70. 
If x, where x < 70, is a certain employee’s age when
hired and y is the minimum number of years of employment required for
the employee to be eligible for retirement benefits, which of the following
equations represents the relationship between x and y ?

A.     xy = 70

B.     x + y = 70

C.     2x + y = 70

D.     x + 2y = 70

E.      2x + 2y = 70

不知道为什么选D。

                                                  E

      
              B                           C

              A           D

In the figure, each side of square ABCD has
length 1, the length of line segment CE is 1, and the length of line segment BE
is equal to the length of line segment DE. 
What is the area of the triangular region BCE?

A.     1/3

B.     (Ö2)/4

C.     1/2

D.     (Ö2)/2

E.      3/4

图在GWD23-34，不知道为什么选B。