皮皮学，免费搜题
登录
搜题
【判断题】
在紫外可见光波长范围内能产生吸收的原子团为助色团A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】When a nation first begins to trade with other countries and the nation becomes an importer of corn,
A.
this is an indication that the world price of corn exceeds the nation’s domestic price of corn in the absence of trade.
B.
this is an indication that the nation has a comparative advantage in producing corn.
C.
the nation’s consumers of corn become better off and the nation’s producers of corn become worse off.
D.
All of the above are correct.
【简答题】某投机者预测8月份大豆期货合约价格将上升，故买人1手(10吨/手)大豆期货合约，成交价格为2010元/吨。此后价格下降到2000元/吨，该投机者再次买入1手合约，则该投机者的持仓平均价格为（ ）元/吨。
【单选题】When he ______, tell him that I've already left.
A.
has come
B.
came
C.
comes
D.
will come
【简答题】蹲踞式跳远分为几个步骤
【单选题】When a nation has very little GDP per person,
A.
it is doomed to being relatively poor forever.
B.
an increase in capital will likely have little impact on output.
C.
it has the potential to grow relatively quickly due to the "catch-up-effect."
D.
it must be a small nation.
【单选题】某投机者预测5月份大豆期货合约价格将上升，故买入10手(10吨)大豆期货合约，成交价格为2030元/吨。可此后价格不升反降，为了补救，该投机者在2000元/吨再次买入5手合约，当市价反弹到( )元/吨时才可以避免损失。(不计税金、手续费等费用)
A.
2010
B.
2015
C.
2020
D.
2025
【单选题】某投机者预测5月份大豆期货合约价格将上升，故买入10手大豆期货合约，成交价格为2030元/吨。可此后价格不升反降，为了补救，该投机者在2000元/吨再次买人5手合约，当市价反弹到（ ）时才可以避免损失(不计税金、手续费等费用)。
A.
2010元/吨
B.
2015元/吨
C.
2020元/吨
D.
2025元/吨
【简答题】某投机者预测5月份大豆期货合约价格将上升，故买入10手大豆期货合约，成交价格为2030元/吨。可此后价格不升反降，为了补救，该投机者在2000元/吨再次买入5手合约，当市价反弹到（ ）时才可以避免损失（不计税金、手续费等费用）。
【单选题】When a nation first begins to trade with other countries and the nation becomes an exporter of soybeans,
A.
this is an indication that the world price of soybeans exceeds the nation’s domestic price of soybeans in the absence of trade.
B.
this is an indication that the nation has a comparative advantage in producing soybeans.
C.
the nation’s consumers of soybeans become worse off and the nation’s producers of soybeans become better off.
D.
All of the above are correct.
【简答题】某投机者预测5月份大豆期货合约价格将上升，故买入10手(10吨)大豆期货合约，成交价格为2030元/吨。可此后价格不升反降，为了补救，该投机者在2000元/吨再次买入5手合约，当市价反弹到（ ）元/吨时才可以避免损失。(不计税金、手续费等费用)
相关题目：