Cho hình chóp(S.ABC)có đáy(ABC)là tam giác cân,(AB = AC = 2a), góc(widehat {BAC} = {120^circ }). Tam giác(SAB)cân tại(S)và nằm trong mặt phẳng vuông góc với đáy, góc tạo bởi mặt phẳng(left( {SBC} right))và mặt phẳng đáy(left( {ABC} right))bằng({60^circ }). Tính khoảng cách giữa hai đường thẳng(AC)và(SB) – Sách Toán – Học toán Link Hoc […]
Cho hình lăng trụ đều(ABC. A’B’C’)có thể tích(V = frac{{{a^3}sqrt 3 }}{2}), tam giác(AB’C’)có diện tích là(frac{{{a^2}sqrt {19} }}{4}). Gọi(M) là trung điểm của cạnh(A{A^prime }). Khoảng cách từ điểm(M) đến mặt phẳng(left( {AB’C’} right))bằng – Sách Toán – Học toán Link Hoc va de thi 2021
Level 47: You had better keep a box of matches _____ in case the lights go out again. Explanation: Structure: keep sth handy: keep something at hand (to be ready to use at any time). The remaining answers: keep in touch: keep in touch You should carry a box of matches in case the power […]
Verse 4: She couldn’t see herself in the mirror because of the rising __ from the bath. Explanation: steam (n): steam Remaining answers: fog (n): fog mist (n): mist smoke (n): smoke She couldn’t look in the mirror because of the steam coming from the hot tub. =============== Link Hoc va de thi 2021
Question 2: I’ve got a headache, and I don’t feel very ___ . Explanation: well (adv): fine, fine Remaining answers: healthy (adj): healthy (usually before a noun) fit (adj): balance sane (adj): crazy I have a headache and I don’t feel well. =============== Link Hoc va de thi 2021
Question 42: I _____ hope there won’t be a repetition of these unfortunate events. Explanation: Phrase: sincerely hope: sincerely hope Remaining answers: bitterly (adv): bitterly unfailingly (adv): unceasingly completely (adv): completely These adverbs do not combine with the verb “hope”. I really hope these unfortunate events won’t happen again. =============== Link Hoc va de thi […]
Question 50: Paul, do you think you could ______ for the night? It’s a bit too late to go home now. Explanation: put sb up (phrV): let someone stay Remaining answers: let sb off (phrV): punish someone fall out with sb (phrV): quarrel with someone Translation: Paul, can you let me sleep tonight? It’s too […]
You are here: Home / English test class 12 / Question 23: All we really know is that men, unlike animals, somehow invented certain sounds to express thoughts and feelings, actions and things so that they could communicate with each other; and that later they agreed _____ certain signs, called letters, which could be combined […]
Question 11: Special education services can help both disabled and _______ children make progress in education programs. knowledge: vocabulary Explanation: poor: poor Special education services can help both children with disabilities and poor children make progress in educational programs. =============== Link Hoc va de thi 2021
Level 31: Find mistake: Bacteria (lived) in the soil play a (vital role) (in recycling) the carbon and nitrogen (needed) by plants => This sentence has 2 verbs “live” and “play”, so we implicitly understand that in this sentence there are 2 clauses, written separately would be:“Bacteria live in the soil. Bacteria play a vital […]