Is the sum of the integers x and y a prime number?
(1) x is an even prime number.
(2) y is a prime number between 10 and 20.
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
even是偶数的意思,搞错了,odd才是奇数