It is difficult to understand this kind of _______ calculation.
A、intricateA
參考譯文：很難理解這種錯綜復雜的計算。intricate錯綜復雜的，糾纏不清的;varied不同的，種種的;indispensable不可缺少的，絕對必要的;equable變動甚少的，穩定的。
Thisofferisfirm,subjecttoyourimmediatereply____shouldreachusnotlaterthantheendofthismonth.()
The factory _______ we ’ll visit next week is not far from here.
It is believed that grammar analysis and translation began to be the basic procedures in foreign language teaching from _______.
Canyouofferusmachinetools___thefollowingspecification?
Don’ttrusteverything________youhavereadinthenewspapers.
