"Adj+于": a comparative structure

[Q.] What would you do when seeing "低于"?
[Strategy] Take it as the "verb" in a comparative sentence---A "Adj于" B.

[SNR-甲.01] “经济增长幅度将保持在3.4%的水准，略低于今年2月份3.6%的预期数字。”
[Q.] What is the main verb of this sentence?
[A.] “低于”

[Q.] What do these following expressions mean?

• A多于B
• A少于B
• A略高于B
• A远低于B
• A略大于B
• A远小于B
• A略重于B
• A远轻于B

【Test yourself】
"广东人的2007年平均期望寿命是75.3岁，高于全国73岁的平均水平，已接近中等发达国家水平。 "
[Q.] In this sentence, how many verbs are there? What are they?
[A.]
[Q.] What is this sentence comparing?
[A.]

"有外电认为，布什给金正日写信的象征意义大于实际意义，因而认为对美朝关系的影响不大。其实，在国际交往中，象征意义本来就是很具有实际意义的，尤其是大国外交。"
[Q.] In the sentence "布什给金正日写信的象征意义大于实际意义", what is the verb? Whatis this sentence comparing?
[A.]