【单选题】( )是利用功率器件,有规律地控制逆变器中主开关的通断,从而得到任意频率的三相交流输出。
【多选题】在师生沟通的技巧中,正确、清楚地传送信息的方法应该是( ),以及重视自己的感觉,注意传送者的非语言提示。
B.
少用主观判断,适当情况下可做些让步,在许可范围内,给学生更多自我选择的空间
C.
试着接受学生的观点,做个细心的听众,以诚挚的态度,仔细聆听学生所提的问题,适时地给予关怀
E.
使用有效的专注技巧,如目光接触、表情、手势等非语言行为
【单选题】According to the author, one of the reasons for the rising of gold price is ______.
A.
the increasing demand for gold
B.
the depreciation of the euro
C.
the link between the dollar and gold
D.
the Increment of the value of the dollar
【单选题】The price of gold soars when gold is __________.
【单选题】Over a three-week period, the price of an ounce of gold increased by 25% in the first week, decreased by 20% in the following week, and increased by 5% in the third week. If the price of gold was G do...
【单选题】The price of diamond rings has risen sharply _______ the price of gold rings has gone down.
【单选题】()是利用功率器件,有规律地控制逆变器中主开关的通断,从而得到任意频率的三相交流输出。
【单选题】In the Western world, currencies are particularly valued against
【单选题】According to the passage, the rise of gold price ______.
B.
will attract some central banks to sell gold
C.
will impel central banks to switch into paper money
D.
will lead to a dollar crisis