【多选题】If I want to get higher score in the writing task, I will have to:
A.
make the main points correct and accurate
B.
make my personal view clear and persuasive
C.
make the structure of my writing coherent and logic
D.
use punctuations and capitalizations correctly
E.
avoid grammatical mistake
【单选题】下列离子方程式书写正确的是( )
A.
将过量的NaOH溶液滴入同浓度的少量Ca(HCO 3 ) 2 溶液中 C a 2+ +2HC O -3 +2O H - =CaC O 3 ↓+2 H 2 O+C O 2-3
B.
向Ba(OH) 2 溶液中逐滴加入NH 4 HSO 4 溶液至刚好沉淀完全 B a 2+ +O H - + H + +S O 2-4 =BaS O 4 ↓+ H 2 O
C.
向Ca(ClO) 2 溶液中通入适量SO 2 :Ca 2+ +2ClO - +SO 2 +H 2 O=CaSO 3 ↓+2HClO
D.
向FeI 2 溶液中加入少量氯水:2Fe 2+ +Cl 2 =2Fe 3+ +2Cl -
【单选题】If i want to go to the USA, I should pass________ in American airport.
【判断题】朗读中表达爱意时适合用气满声高的方式,表达更为强烈。
【单选题】以下关于电池的概念中,属于构成电池组的最基本单元的是()
【判断题】朗读中表达爱意时适合用气满声高的方式,表达更为强烈。
【单选题】下列离子方程式错误的是
A.
氯气通入水中:C1 2 + H 2 O H + + C1 - + HClO
B.
向Mg(HCO 3 ) 2 溶液中加入过量的澄清石灰水: Mg 2+ +2HCO 3 — +2OH 一 +Ca 2+ MgCO 3 +CaCO 3 ↓+2H 2 O.
C.
将适量的CO 2 通入Ca(C1O) 2 溶液中: Ca 2+ +2C1O — +CO 2 +H 2 O 2HC1O+CaCO 3 ↓
D.
Ba(OH) 2 溶液中加入过量的Al 2 (SO 4 ) 3 溶液: 3Ba 2+ +6OH — +2Al 3+ +3SO 4 2— 3BaSO 4 ↓+2Al(OH) 3 ↓
【单选题】I want to know if I need to complete a FAFSA form. in order to be______for any type of financial aid.
【单选题】向 HC 2 O 4 - 溶液中加入适量 Na 2 C 2 O 4 , 则
B.
K ө a2 ( H 2 C 2 O 4 ) 变小
【单选题】If I want to summarize something, which phrase can I use to begin the summary?
C.
The nut of the matter is…