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【简答题】
如图甲为自然生态系统的生态金字塔,城市生态系统(属于人工生态系统)的生态金字塔.以下解释不符合客观事实的是(  ) A.甲图表示能量流动的途径是绿色植物→食草动物→食肉动物 B.表示流经该生态系统的总能量是系统内植物所固定的太阳能总量 C.甲图表示该生态系统中能量流动的传递效率为10%~20% D.表示人类活动在该生态系统中起决定性作用
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举一反三
【简答题】任务栏上的应用程序按钮是最小化了的()窗口.A. A:应用程序 B. B:对话框 C. C:文档 D. D:菜单
【单选题】Ovarian chocolate cyst is referred to
A.
Ovarian cyst of fallopian tube
B.
Ovarian endometriosis cyst
C.
Mucinous cystadenoma of ovary
D.
Cystic teratoma of ovary
E.
Luteal hematoma of ovary
【单选题】The ovarian artery is a branch of
A.
Common iliac artery
B.
Internal iliac artery
C.
Aorta
D.
Hypogastric artery
【单选题】任务栏上的应用程序按钮是最小化了的()窗口
A.
应用程序
B.
对话框
C.
文档
D.
菜单
【单选题】设总体 的密度函数为 其中 为未知参数, 为取自总体 的样本,则参数 的矩估计量为( ).
A.
;
B.
;
C.
;
D.
.
【单选题】Growing ovarian follicles include which of the following follicles?
A.
Primordial and primary follicles
B.
Primary and secondary follicles
C.
Secondary and mature follicles
D.
Primary and mature follicles.
E.
Primary follicles
【简答题】设(X1,X2,…,Xn)为取自正态总体X~N(μ,σ2)的样本,则μ2+σ2的矩法估计量为
【单选题】The ovarian artery:
A.
Arises as a branch of the abdominal aorta on both the left and right sides
B.
Courses through the mesometrium
C.
Supplies blood to the anal canal
D.
Has an anastomosis with the inferior epigastric artery
E.
Passes inferior to the ureter to on its way to the uterus
【简答题】卵巢周期(ovarian cycle)
【单选题】What's Ovarian Cancer Research Fund?
A.
It's a profit organization created by Sol Scherber
B.
Its aim is to honor a woman valiantly fought ovarian cancer.
C.
It provides to people who with ovarian cancer.
D.
It's a cosmetic company.
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