【单选题】We _____ in the city, but now we live in the countryside
【单选题】From these stories we understand that_____
A.
we cannot trust banks.
B.
we should not trust anyone.
C.
a waterproof bag is not proof against worms and insects.
【单选题】When the author says that we need to be in the driver's seat, he means that .
A.
a. we need to drive a car
B.
b. we should control our driving
C.
c. we must change the world
D.
d. we should govern our thinking
【单选题】_________ for over 50 years, we are confident we can give our customers complete satisfaction.
B.
Having been in business
【单选题】下列关于生物科学史的叙述,错误的是
A.
赫尔希和蔡斯利用同位素标记法证明了DNA是遗传物质
B.
坎农提出了通过神经-体液-免疫调节网络维持内环境稳态
C.
孟德尔运用假说-演绎法得出遗传的分离与自由组合定律
D.
1970年,科学家利用荧光标记法证明细胞膜具有流动性
【单选题】( )市场属最终产品市场,是市场运行的出发点和最终点。( )的需求是派生需求,是由( )的需求引发的。1消费品市场 2组织市场 3政府社团市场 4生产者市场
【单选题】___ have to work today, we should go to Laguna Beach.