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【单选题】
抑制甲状腺球蛋白水解酶而减少甲状腺素分泌的药物是
A.
甲巯咪唑
B.
卡比马唑
C.
甲硫氧嘧啶
D.
碘化钾
E.
131 I
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参考答案:
举一反三
【单选题】Good relationships between partners are the rudders which steer joint ventures through ______waters.
A.
uneasy
B.
troubled
C.
uneasy
D.
disturbed
【单选题】The rudders are amidships and both screws are going ahead.What will happen if the starboard screw is stopped ________.
A.
The bow will go to port
B.
The bow will go to starboard
C.
The bow will remain steady
D.
The stern will go to starboard
【单选题】Flanking rudders effect a vessel’s heading because of the().
A.
Effect of the propeller flow on the rudders
B.
Water flow due to the vessel's movement through the water
C.
Tunnel affect of the water flow past opposing rudders
D.
Discharge current being channeled to impinge on the vessel's deadwood
【简答题】已知向量组α1=(t,2,1),α2=(2,t,0),α3=(1,-1,1),试 讨论: (1)t为何值时,向量组α1,α2,α3线性相关? (2)t为何值时,向量组α1,α2,α3线性无关?
【判断题】心肌细胞呈短圆柱状,有多个核,位于肌膜下
A.
正确
B.
错误
【简答题】若向量组α 1 ,α 2 ,α 3 线性无关,则向量组α 1 +α 2 ,α 2 +α 3 +α 1 仍然线性无关. 若向量组α 1 ,α 2 ,…α n (n>3)线性无关,则向量组α 1 +α 2 ,α 2 +α 3 ,…,α n +α 1 仍然线性无关?
【简答题】设β 1 =α 1 ,β 2 =α 1 +α 2 ,…,β 2 =α 1 +α 2 +…+α m 且向量组α 1 ,α 2 ,…,α m 线性无关,证明向量组β 1 ,β 2 ,…,β m 线性无关.
【单选题】Ms. Rudders will be ______ looking through all the job applications to make sure we select the best person.
A.
care
B.
caring
C.
careful
D.
carefully
【单选题】关于心肌纤维的光镜结构描述错误的是
A.
心肌纤维呈短圆柱状
B.
心肌纤维有分支,互连成网
C.
每个心肌细胞有多个细胞核,位于肌膜下方
D.
心肌有横纹
E.
心肌可见闰盘
【简答题】设n维向量组α 1 =(1,0,…,0) T ,α 2 =(1,1,0,…,0) T ,…,α n =(1,1,…,1) T , 求证:向量组α 1 ,α 2 ,…,α n 与n维标准向量组ε 1 =(1,0,…,0) T ,ε 2 =(0,1,0,…,0) T ,…,ε n =(0,…,0,1) T 等价.
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