胃炎(gastritis)
参考答案:
是指由于各种物理性、化学性或生物性有害因子引起的胃粘膜或胃壁炎性改变的一种疾病。
An investor holds a portfolio consisting of one share of each of the following stocks:()
A.stock
B.price at the beginning of the year
C.price at the end of the year
D.cash dividend during the year
E.
X
Y
Z
F.
$20
$40
$100
G.
$10
$50
$105
H.
$0
$2
$4
只有在合作中避免竞争,在竞争中避免合作,才能取得事业的成功。