【简答题】俄译汉:Это Москва. Дом тут. Завод там. Это мама. Мама дома. Это Анна. Анна дома. Это Антон. Антон там.
【简答题】回转筒混合机的充满系数在()时,混合效果最好;圆锥行星混合机的充满系数在()时,混合效果最好。
【单选题】听力原文:W: Wow! Your new apartment is fabulous! So spacious and clean! What's the rent like? M: Well, it's pretty good. I pay 500 dollars a month, which is great for this area. Q: How does the man feel a...
A.
The man thinks his rent is very cheap.
B.
The man thinks his rent is very expensive.
C.
The man thinks he lives in a good area.
D.
The man thinks his rent is reasonable.
【单选题】听力原文:W: You're taking a course with Professor Johnson. What's your impression so far? M: Well, many students could hardly stay awake in his class without first drinking a cup of coffee. Q: What does t...
A.
Few students understand Prof. Johnson's lectures.
B.
Few students meet Prof. Johnson's requirements.
C.
Many students find Prof. Johnson's lectures boring.
D.
Many students have dropped Prof. Johnson's class.
【判断题】Public 可以用来定义变量,但必须出现在通用声明段,而不能出现在过程中。
【判断题】反应可分为吸热反应和放热反应,那么可知吸热反应的ΔH为正,放热反应的ΔH为负。
【简答题】(1)为确定两种化肥的混合物的组成,进行如下实验: ①取少量样品与消石灰共热,放出可使湿润的红色石蕊试纸变蓝的气体,证明化肥中含有______离子. ②将上述反应后所得固体加入盐酸中,生成无色无味气体,将所得气体通入澄清石灰水后出现浑浊现象.证明化肥中含有______离子或______离子. ③另取少量样品溶与水,得无色透明溶液,加入MgCl 2 溶液后无明显变化,可知化肥中一定含有______离...
【单选题】在税法许可的范围内,下列纳税筹划方法中,能够导致递延纳税的是